Finding the Fourth Proportional to 59,263.32, 81,836.52 and 55,129.86

Step by Step Solution

1. Step 1: Write the proportion equation
   59,263.32 : 81,836.52 = 55,129.86 : x
2. Step 2: Convert to fraction form
   59,263.32/81,836.52 = 55,129.86/x
3. Step 3: Cross multiply
   59,263.32x = 81,836.52 × 55,129.86
4. Step 4: Simplify right side
   59,263.32x = 4,511,635,890.49
5. Step 5: Solve for x
   x = 4,511,635,890.49/59,263.32
6. Step 6: Final answer
   x = 76,128.64