Finding the Fourth Proportional to 78,674.52, 108,572.09 and 42,864.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,674.52 : 108,572.09 = 42,864.52 : x
2. Step 2: Convert to fraction form
   78,674.52/108,572.09 = 42,864.52/x
3. Step 3: Cross multiply
   78,674.52x = 108,572.09 × 42,864.52
4. Step 4: Simplify right side
   78,674.52x = 4,653,890,308.92
5. Step 5: Solve for x
   x = 4,653,890,308.92/78,674.52
6. Step 6: Final answer
   x = 59,153.72