Finding the Fourth Proportional to 168,700.72, 253,061.52 and 56,391.04

Step by Step Solution

1. Step 1: Write the proportion equation
   168,700.72 : 253,061.52 = 56,391.04 : x
2. Step 2: Convert to fraction form
   168,700.72/253,061.52 = 56,391.04/x
3. Step 3: Cross multiply
   168,700.72x = 253,061.52 × 56,391.04
4. Step 4: Simplify right side
   168,700.72x = 14,270,402,296.78
5. Step 5: Solve for x
   x = 14,270,402,296.78/168,700.72
6. Step 6: Final answer
   x = 84,590.05