Finding the Fourth Proportional to 58,397.72, 80,565 and 43,120.88

Step by Step Solution

1. Step 1: Write the proportion equation
   58,397.72 : 80,565 = 43,120.88 : x
2. Step 2: Convert to fraction form
   58,397.72/80,565 = 43,120.88/x
3. Step 3: Cross multiply
   58,397.72x = 80,565 × 43,120.88
4. Step 4: Simplify right side
   58,397.72x = 3,474,033,697.20
5. Step 5: Solve for x
   x = 3,474,033,697.20/58,397.72
6. Step 6: Final answer
   x = 59,489.20