Finding the Fourth Proportional to 78,816.10, 108,770.62 and 43,006.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,816.10 : 108,770.62 = 43,006.72 : x
2. Step 2: Convert to fraction form
   78,816.10/108,770.62 = 43,006.72/x
3. Step 3: Cross multiply
   78,816.10x = 108,770.62 × 43,006.72
4. Step 4: Simplify right side
   78,816.10x = 4,677,867,598.57
5. Step 5: Solve for x
   x = 4,677,867,598.57/78,816.10
6. Step 6: Final answer
   x = 59,351.68