Finding the Fourth Proportional to 78,405.60, 108,200.28 and 42,595.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,405.60 : 108,200.28 = 42,595.92 : x
2. Step 2: Convert to fraction form
   78,405.60/108,200.28 = 42,595.92/x
3. Step 3: Cross multiply
   78,405.60x = 108,200.28 × 42,595.92
4. Step 4: Simplify right side
   78,405.60x = 4,608,890,470.86
5. Step 5: Solve for x
   x = 4,608,890,470.86/78,405.60
6. Step 6: Final answer
   x = 58,782.67