Finding the Fourth Proportional to 78,470.94, 108,292.02 and 42,663.42

Step by Step Solution

1. Step 1: Write the proportion equation
   78,470.94 : 108,292.02 = 42,663.42 : x
2. Step 2: Convert to fraction form
   78,470.94/108,292.02 = 42,663.42/x
3. Step 3: Cross multiply
   78,470.94x = 108,292.02 × 42,663.42
4. Step 4: Simplify right side
   78,470.94x = 4,620,107,931.91
5. Step 5: Solve for x
   x = 4,620,107,931.91/78,470.94
6. Step 6: Final answer
   x = 58,876.67