Finding the Fourth Proportional to 90,460.47, 124,753.73 and 56,472.09

Step by Step Solution

1. Step 1: Write the proportion equation
   90,460.47 : 124,753.73 = 56,472.09 : x
2. Step 2: Convert to fraction form
   90,460.47/124,753.73 = 56,472.09/x
3. Step 3: Cross multiply
   90,460.47x = 124,753.73 × 56,472.09
4. Step 4: Simplify right side
   90,460.47x = 7,045,103,586.04
5. Step 5: Solve for x
   x = 7,045,103,586.04/90,460.47
6. Step 6: Final answer
   x = 77,880.47