Finding the Fourth Proportional to 1,209,506,833,096.30, 1,669,120,099,253 and 653,311,957,160.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,506,833,096.30 : 1,669,120,099,253 = 653,311,957,160.12 : x
2. Step 2: Convert to fraction form
   1,209,506,833,096.30/1,669,120,099,253 = 653,311,957,160.12/x
3. Step 3: Cross multiply
   1,209,506,833,096.30x = 1,669,120,099,253 × 653,311,957,160.12
4. Step 4: Simplify right side
   1,209,506,833,096.30x = 1,090,456,118,778,271,111,315,456
5. Step 5: Solve for x
   x = 1,090,456,118,778,271,111,315,456/1,209,506,833,096.30
6. Step 6: Final answer
   x = 901,570,862,552.91