Finding the Fourth Proportional to 55,585.61, 83,380.71 and 16,142.72

Step by Step Solution

1. Step 1: Write the proportion equation
   55,585.61 : 83,380.71 = 16,142.72 : x
2. Step 2: Convert to fraction form
   55,585.61/83,380.71 = 16,142.72/x
3. Step 3: Cross multiply
   55,585.61x = 83,380.71 × 16,142.72
4. Step 4: Simplify right side
   55,585.61x = 1,345,991,454.93
5. Step 5: Solve for x
   x = 1,345,991,454.93/55,585.61
6. Step 6: Final answer
   x = 24,214.75