Finding the Fourth Proportional to 76,614.72, 105,727.68 and 43,080

Step by Step Solution

1. Step 1: Write the proportion equation
   76,614.72 : 105,727.68 = 43,080 : x
2. Step 2: Convert to fraction form
   76,614.72/105,727.68 = 43,080/x
3. Step 3: Cross multiply
   76,614.72x = 105,727.68 × 43,080
4. Step 4: Simplify right side
   76,614.72x = 4,554,748,454.40
5. Step 5: Solve for x
   x = 4,554,748,454.40/76,614.72
6. Step 6: Final answer
   x = 59,450.04