Finding the Fourth Proportional to 62,180.17, 85,611.89 and 56,497.91

Step by Step Solution

1. Step 1: Write the proportion equation
   62,180.17 : 85,611.89 = 56,497.91 : x
2. Step 2: Convert to fraction form
   62,180.17/85,611.89 = 56,497.91/x
3. Step 3: Cross multiply
   62,180.17x = 85,611.89 × 56,497.91
4. Step 4: Simplify right side
   62,180.17x = 4,836,892,856.15
5. Step 5: Solve for x
   x = 4,836,892,856.15/62,180.17
6. Step 6: Final answer
   x = 77,788.35