Finding the Fourth Proportional to 90,472.88, 124,770.82 and 56,484.52

Step by Step Solution

1. Step 1: Write the proportion equation
   90,472.88 : 124,770.82 = 56,484.52 : x
2. Step 2: Convert to fraction form
   90,472.88/124,770.82 = 56,484.52/x
3. Step 3: Cross multiply
   90,472.88x = 124,770.82 × 56,484.52
4. Step 4: Simplify right side
   90,472.88x = 7,047,619,877.71
5. Step 5: Solve for x
   x = 7,047,619,877.71/90,472.88
6. Step 6: Final answer
   x = 77,897.60