Finding the Fourth Proportional to 101,419.29, 139,986.83 and 58,986.02

Step by Step Solution

1. Step 1: Write the proportion equation
   101,419.29 : 139,986.83 = 58,986.02 : x
2. Step 2: Convert to fraction form
   101,419.29/139,986.83 = 58,986.02/x
3. Step 3: Cross multiply
   101,419.29x = 139,986.83 × 58,986.02
4. Step 4: Simplify right side
   101,419.29x = 8,257,266,451.55
5. Step 5: Solve for x
   x = 8,257,266,451.55/101,419.29
6. Step 6: Final answer
   x = 81,417.12