Finding the Fourth Proportional to 78,146.58, 107,842.08 and 42,337.47

Step by Step Solution

1. Step 1: Write the proportion equation
   78,146.58 : 107,842.08 = 42,337.47 : x
2. Step 2: Convert to fraction form
   78,146.58/107,842.08 = 42,337.47/x
3. Step 3: Cross multiply
   78,146.58x = 107,842.08 × 42,337.47
4. Step 4: Simplify right side
   78,146.58x = 4,565,760,826.74
5. Step 5: Solve for x
   x = 4,565,760,826.74/78,146.58
6. Step 6: Final answer
   x = 58,425.60