Finding the Fourth Proportional to 78,876.36, 108,849.42 and 43,065.72

Step by Step Solution

1. Step 1: Write the proportion equation
   78,876.36 : 108,849.42 = 43,065.72 : x
2. Step 2: Convert to fraction form
   78,876.36/108,849.42 = 43,065.72/x
3. Step 3: Cross multiply
   78,876.36x = 108,849.42 × 43,065.72
4. Step 4: Simplify right side
   78,876.36x = 4,687,678,643.88
5. Step 5: Solve for x
   x = 4,687,678,643.88/78,876.36
6. Step 6: Final answer
   x = 59,430.72