Finding the Fourth Proportional to 89,592.42, 123,586.11 and 56,000.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,592.42 : 123,586.11 = 56,000.10 : x
2. Step 2: Convert to fraction form
   89,592.42/123,586.11 = 56,000.10/x
3. Step 3: Cross multiply
   89,592.42x = 123,586.11 × 56,000.10
4. Step 4: Simplify right side
   89,592.42x = 6,920,834,518.61
5. Step 5: Solve for x
   x = 6,920,834,518.61/89,592.42
6. Step 6: Final answer
   x = 77,247.99