Finding the Fourth Proportional to 78,044.18, 107,700.98 and 42,234.20

Step by Step Solution

1. Step 1: Write the proportion equation
   78,044.18 : 107,700.98 = 42,234.20 : x
2. Step 2: Convert to fraction form
   78,044.18/107,700.98 = 42,234.20/x
3. Step 3: Cross multiply
   78,044.18x = 107,700.98 × 42,234.20
4. Step 4: Simplify right side
   78,044.18x = 4,548,663,979.84
5. Step 5: Solve for x
   x = 4,548,663,979.84/78,044.18
6. Step 6: Final answer
   x = 58,283.20