Finding the Fourth Proportional to 78,810.91, 108,758.16 and 43,000.15

Step by Step Solution

1. Step 1: Write the proportion equation
   78,810.91 : 108,758.16 = 43,000.15 : x
2. Step 2: Convert to fraction form
   78,810.91/108,758.16 = 43,000.15/x
3. Step 3: Cross multiply
   78,810.91x = 108,758.16 × 43,000.15
4. Step 4: Simplify right side
   78,810.91x = 4,676,617,193.72
5. Step 5: Solve for x
   x = 4,676,617,193.72/78,810.91
6. Step 6: Final answer
   x = 59,339.72