Finding the Fourth Proportional to 103,416.77, 142,699.59 and 58,086.06

Step by Step Solution

1. Step 1: Write the proportion equation
   103,416.77 : 142,699.59 = 58,086.06 : x
2. Step 2: Convert to fraction form
   103,416.77/142,699.59 = 58,086.06/x
3. Step 3: Cross multiply
   103,416.77x = 142,699.59 × 58,086.06
4. Step 4: Simplify right side
   103,416.77x = 8,288,856,946.72
5. Step 5: Solve for x
   x = 8,288,856,946.72/103,416.77
6. Step 6: Final answer
   x = 80,150.03