Finding the Fourth Proportional to 64,158.02, 88,527.56 and 58,996.70

Step by Step Solution

1. Step 1: Write the proportion equation
   64,158.02 : 88,527.56 = 58,996.70 : x
2. Step 2: Convert to fraction form
   64,158.02/88,527.56 = 58,996.70/x
3. Step 3: Cross multiply
   64,158.02x = 88,527.56 × 58,996.70
4. Step 4: Simplify right side
   64,158.02x = 5,222,833,899.05
5. Step 5: Solve for x
   x = 5,222,833,899.05/64,158.02
6. Step 6: Final answer
   x = 81,405.78