Finding the Fourth Proportional to 78,111.43, 107,793.60 and 42,301.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.43 : 107,793.60 = 42,301.33 : x
2. Step 2: Convert to fraction form
   78,111.43/107,793.60 = 42,301.33/x
3. Step 3: Cross multiply
   78,111.43x = 107,793.60 × 42,301.33
4. Step 4: Simplify right side
   78,111.43x = 4,559,812,645.49
5. Step 5: Solve for x
   x = 4,559,812,645.49/78,111.43
6. Step 6: Final answer
   x = 58,375.74