Finding the Fourth Proportional to 155,601,196.74, 214,730,321.00 and 85,038,254.10

Step by Step Solution

1. Step 1: Write the proportion equation
   155,601,196.74 : 214,730,321.00 = 85,038,254.10 : x
2. Step 2: Convert to fraction form
   155,601,196.74/214,730,321.00 = 85,038,254.10/x
3. Step 3: Cross multiply
   155,601,196.74x = 214,730,321.00 × 85,038,254.10
4. Step 4: Simplify right side
   155,601,196.74x = 18,260,291,599,747,372
5. Step 5: Solve for x
   x = 18,260,291,599,747,372/155,601,196.74
6. Step 6: Final answer
   x = 117,353,156.55