Finding the Fourth Proportional to 113,284.87, 156,321 and 65,529.29

Step by Step Solution

1. Step 1: Write the proportion equation
   113,284.87 : 156,321 = 65,529.29 : x
2. Step 2: Convert to fraction form
   113,284.87/156,321 = 65,529.29/x
3. Step 3: Cross multiply
   113,284.87x = 156,321 × 65,529.29
4. Step 4: Simplify right side
   113,284.87x = 10,243,604,142.09
5. Step 5: Solve for x
   x = 10,243,604,142.09/113,284.87
6. Step 6: Final answer
   x = 90,423.41