Finding the Fourth Proportional to 59,731.42, 82,251.60 and 58,405.46

Step by Step Solution

1. Step 1: Write the proportion equation
   59,731.42 : 82,251.60 = 58,405.46 : x
2. Step 2: Convert to fraction form
   59,731.42/82,251.60 = 58,405.46/x
3. Step 3: Cross multiply
   59,731.42x = 82,251.60 × 58,405.46
4. Step 4: Simplify right side
   59,731.42x = 4,803,942,533.74
5. Step 5: Solve for x
   x = 4,803,942,533.74/59,731.42
6. Step 6: Final answer
   x = 80,425.72