Finding the Fourth Proportional to 55,598.62, 76,724.61 and 31,724.86

Step by Step Solution

1. Step 1: Write the proportion equation
   55,598.62 : 76,724.61 = 31,724.86 : x
2. Step 2: Convert to fraction form
   55,598.62/76,724.61 = 31,724.86/x
3. Step 3: Cross multiply
   55,598.62x = 76,724.61 × 31,724.86
4. Step 4: Simplify right side
   55,598.62x = 2,434,077,510.80
5. Step 5: Solve for x
   x = 2,434,077,510.80/55,598.62
6. Step 6: Final answer
   x = 43,779.46