Finding the Fourth Proportional to 58,684.72, 80,879.16 and 42,743.92

Step by Step Solution

1. Step 1: Write the proportion equation
   58,684.72 : 80,879.16 = 42,743.92 : x
2. Step 2: Convert to fraction form
   58,684.72/80,879.16 = 42,743.92/x
3. Step 3: Cross multiply
   58,684.72x = 80,879.16 × 42,743.92
4. Step 4: Simplify right side
   58,684.72x = 3,457,092,344.71
5. Step 5: Solve for x
   x = 3,457,092,344.71/58,684.72
6. Step 6: Final answer
   x = 58,909.58