Finding the Fourth Proportional to 113,429.70, 156,538.17 and 63,131.94

Step by Step Solution

1. Step 1: Write the proportion equation
   113,429.70 : 156,538.17 = 63,131.94 : x
2. Step 2: Convert to fraction form
   113,429.70/156,538.17 = 63,131.94/x
3. Step 3: Cross multiply
   113,429.70x = 156,538.17 × 63,131.94
4. Step 4: Simplify right side
   113,429.70x = 9,882,558,356.15
5. Step 5: Solve for x
   x = 9,882,558,356.15/113,429.70
6. Step 6: Final answer
   x = 87,124.96