Finding the Fourth Proportional to 162,025.92, 242,930.88 and 56,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   162,025.92 : 242,930.88 = 56,790.72 : x
2. Step 2: Convert to fraction form
   162,025.92/242,930.88 = 56,790.72/x
3. Step 3: Cross multiply
   162,025.92x = 242,930.88 × 56,790.72
4. Step 4: Simplify right side
   162,025.92x = 13,796,219,585.43
5. Step 5: Solve for x
   x = 13,796,219,585.43/162,025.92
6. Step 6: Final answer
   x = 85,148.23