Finding the Fourth Proportional to 78,042.74, 107,698.76 and 42,232.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,042.74 : 107,698.76 = 42,232.72 : x
2. Step 2: Convert to fraction form
   78,042.74/107,698.76 = 42,232.72/x
3. Step 3: Cross multiply
   78,042.74x = 107,698.76 × 42,232.72
4. Step 4: Simplify right side
   78,042.74x = 4,548,411,575.43
5. Step 5: Solve for x
   x = 4,548,411,575.43/78,042.74
6. Step 6: Final answer
   x = 58,281.03