Finding the Fourth Proportional to 113,386.43, 156,440.81 and 73,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,386.43 : 156,440.81 = 73,123.31 : x
2. Step 2: Convert to fraction form
   113,386.43/156,440.81 = 73,123.31/x
3. Step 3: Cross multiply
   113,386.43x = 156,440.81 × 73,123.31
4. Step 4: Simplify right side
   113,386.43x = 11,439,470,420.19
5. Step 5: Solve for x
   x = 11,439,470,420.19/113,386.43
6. Step 6: Final answer
   x = 100,889.23