Finding the Fourth Proportional to 78,111.36, 107,793.45 and 42,301.35

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.36 : 107,793.45 = 42,301.35 : x
2. Step 2: Convert to fraction form
   78,111.36/107,793.45 = 42,301.35/x
3. Step 3: Cross multiply
   78,111.36x = 107,793.45 × 42,301.35
4. Step 4: Simplify right side
   78,111.36x = 4,559,808,456.16
5. Step 5: Solve for x
   x = 4,559,808,456.16/78,111.36
6. Step 6: Final answer
   x = 58,375.74