Finding the Fourth Proportional to 21,407.88, 32,108.58 and 5,826.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,407.88 : 32,108.58 = 5,826.72 : x
2. Step 2: Convert to fraction form
   21,407.88/32,108.58 = 5,826.72/x
3. Step 3: Cross multiply
   21,407.88x = 32,108.58 × 5,826.72
4. Step 4: Simplify right side
   21,407.88x = 187,087,705.26
5. Step 5: Solve for x
   x = 187,087,705.26/21,407.88
6. Step 6: Final answer
   x = 8,739.20