Finding the Fourth Proportional to 55,004.86, 82,439.53 and 21,691.42

Step by Step Solution

1. Step 1: Write the proportion equation
   55,004.86 : 82,439.53 = 21,691.42 : x
2. Step 2: Convert to fraction form
   55,004.86/82,439.53 = 21,691.42/x
3. Step 3: Cross multiply
   55,004.86x = 82,439.53 × 21,691.42
4. Step 4: Simplify right side
   55,004.86x = 1,788,230,469.83
5. Step 5: Solve for x
   x = 1,788,230,469.83/55,004.86
6. Step 6: Final answer
   x = 32,510.41