Finding the Fourth Proportional to 112,803.84, 155,675.52 and 65,072.16

Step by Step Solution

1. Step 1: Write the proportion equation
   112,803.84 : 155,675.52 = 65,072.16 : x
2. Step 2: Convert to fraction form
   112,803.84/155,675.52 = 65,072.16/x
3. Step 3: Cross multiply
   112,803.84x = 155,675.52 × 65,072.16
4. Step 4: Simplify right side
   112,803.84x = 10,130,142,345.52
5. Step 5: Solve for x
   x = 10,130,142,345.52/112,803.84
6. Step 6: Final answer
   x = 89,803.17