Finding the Fourth Proportional to 101,086.12, 139,497.30 and 58,651.96

Step by Step Solution

1. Step 1: Write the proportion equation
   101,086.12 : 139,497.30 = 58,651.96 : x
2. Step 2: Convert to fraction form
   101,086.12/139,497.30 = 58,651.96/x
3. Step 3: Cross multiply
   101,086.12x = 139,497.30 × 58,651.96
4. Step 4: Simplify right side
   101,086.12x = 8,181,790,059.71
5. Step 5: Solve for x
   x = 8,181,790,059.71/101,086.12
6. Step 6: Final answer
   x = 80,938.81