Finding the Fourth Proportional to 78,141.83, 107,835.62 and 42,331.99

Step by Step Solution

1. Step 1: Write the proportion equation
   78,141.83 : 107,835.62 = 42,331.99 : x
2. Step 2: Convert to fraction form
   78,141.83/107,835.62 = 42,331.99/x
3. Step 3: Cross multiply
   78,141.83x = 107,835.62 × 42,331.99
4. Step 4: Simplify right side
   78,141.83x = 4,564,896,223.72
5. Step 5: Solve for x
   x = 4,564,896,223.72/78,141.83
6. Step 6: Final answer
   x = 58,418.09