Finding the Fourth Proportional to 78,139.12, 107,832.27 and 42,329.04

Step by Step Solution

1. Step 1: Write the proportion equation
   78,139.12 : 107,832.27 = 42,329.04 : x
2. Step 2: Convert to fraction form
   78,139.12/107,832.27 = 42,329.04/x
3. Step 3: Cross multiply
   78,139.12x = 107,832.27 × 42,329.04
4. Step 4: Simplify right side
   78,139.12x = 4,564,436,258.48
5. Step 5: Solve for x
   x = 4,564,436,258.48/78,139.12
6. Step 6: Final answer
   x = 58,414.23