Finding the Fourth Proportional to 101,142.85, 139,572.38 and 58,092.05

Step by Step Solution

1. Step 1: Write the proportion equation
   101,142.85 : 139,572.38 = 58,092.05 : x
2. Step 2: Convert to fraction form
   101,142.85/139,572.38 = 58,092.05/x
3. Step 3: Cross multiply
   101,142.85x = 139,572.38 × 58,092.05
4. Step 4: Simplify right side
   101,142.85x = 8,108,045,677.58
5. Step 5: Solve for x
   x = 8,108,045,677.58/101,142.85
6. Step 6: Final answer
   x = 80,164.30