Finding the Fourth Proportional to 78,913.78, 108,899.24 and 43,103.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,913.78 : 108,899.24 = 43,103.92 : x
2. Step 2: Convert to fraction form
   78,913.78/108,899.24 = 43,103.92/x
3. Step 3: Cross multiply
   78,913.78x = 108,899.24 × 43,103.92
4. Step 4: Simplify right side
   78,913.78x = 4,693,984,129.02
5. Step 5: Solve for x
   x = 4,693,984,129.02/78,913.78
6. Step 6: Final answer
   x = 59,482.44