Finding the Fourth Proportional to 113,384.72, 156,418.56 and 73,111.42

Step by Step Solution

1. Step 1: Write the proportion equation
   113,384.72 : 156,418.56 = 73,111.42 : x
2. Step 2: Convert to fraction form
   113,384.72/156,418.56 = 73,111.42/x
3. Step 3: Cross multiply
   113,384.72x = 156,418.56 × 73,111.42
4. Step 4: Simplify right side
   113,384.72x = 11,435,982,253.86
5. Step 5: Solve for x
   x = 11,435,982,253.86/113,384.72
6. Step 6: Final answer
   x = 100,859.99