Finding the Fourth Proportional to 113,561.51, 156,720.17 and 65,829.83

Step by Step Solution

1. Step 1: Write the proportion equation
   113,561.51 : 156,720.17 = 65,829.83 : x
2. Step 2: Convert to fraction form
   113,561.51/156,720.17 = 65,829.83/x
3. Step 3: Cross multiply
   113,561.51x = 156,720.17 × 65,829.83
4. Step 4: Simplify right side
   113,561.51x = 10,316,861,819.52
5. Step 5: Solve for x
   x = 10,316,861,819.52/113,561.51
6. Step 6: Final answer
   x = 90,848.23