Finding the Fourth Proportional to 101,005.32, 139,379.15 and 58,566.59

Step by Step Solution

1. Step 1: Write the proportion equation
   101,005.32 : 139,379.15 = 58,566.59 : x
2. Step 2: Convert to fraction form
   101,005.32/139,379.15 = 58,566.59/x
3. Step 3: Cross multiply
   101,005.32x = 139,379.15 × 58,566.59
4. Step 4: Simplify right side
   101,005.32x = 8,162,960,542.87
5. Step 5: Solve for x
   x = 8,162,960,542.87/101,005.32
6. Step 6: Final answer
   x = 80,817.13