Finding the Fourth Proportional to 55,174.88, 82,762.52 and 13,621.88

Step by Step Solution

1. Step 1: Write the proportion equation
   55,174.88 : 82,762.52 = 13,621.88 : x
2. Step 2: Convert to fraction form
   55,174.88/82,762.52 = 13,621.88/x
3. Step 3: Cross multiply
   55,174.88x = 82,762.52 × 13,621.88
4. Step 4: Simplify right side
   55,174.88x = 1,127,380,634.02
5. Step 5: Solve for x
   x = 1,127,380,634.02/55,174.88
6. Step 6: Final answer
   x = 20,432.86