Finding the Fourth Proportional to 78,111.02, 107,793.32 and 42,301.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,111.02 : 107,793.32 = 42,301.10 : x
2. Step 2: Convert to fraction form
   78,111.02/107,793.32 = 42,301.10/x
3. Step 3: Cross multiply
   78,111.02x = 107,793.32 × 42,301.10
4. Step 4: Simplify right side
   78,111.02x = 4,559,775,258.18
5. Step 5: Solve for x
   x = 4,559,775,258.18/78,111.02
6. Step 6: Final answer
   x = 58,375.57