Finding the Fourth Proportional to 161,404.50, 242,107.96 and 56,223.30

Step by Step Solution

1. Step 1: Write the proportion equation
   161,404.50 : 242,107.96 = 56,223.30 : x
2. Step 2: Convert to fraction form
   161,404.50/242,107.96 = 56,223.30/x
3. Step 3: Cross multiply
   161,404.50x = 242,107.96 × 56,223.30
4. Step 4: Simplify right side
   161,404.50x = 13,612,108,467.47
5. Step 5: Solve for x
   x = 13,612,108,467.47/161,404.50
6. Step 6: Final answer
   x = 84,335.37