Finding the Fourth Proportional to 78,146.76, 107,842.56 and 42,337.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,146.76 : 107,842.56 = 42,337.02 : x
2. Step 2: Convert to fraction form
   78,146.76/107,842.56 = 42,337.02/x
3. Step 3: Cross multiply
   78,146.76x = 107,842.56 × 42,337.02
4. Step 4: Simplify right side
   78,146.76x = 4,565,732,619.57
5. Step 5: Solve for x
   x = 4,565,732,619.57/78,146.76
6. Step 6: Final answer
   x = 58,425.10