Finding the Fourth Proportional to 21,458.72, 32,187 and 5,876.48

Step by Step Solution

1. Step 1: Write the proportion equation
   21,458.72 : 32,187 = 5,876.48 : x
2. Step 2: Convert to fraction form
   21,458.72/32,187 = 5,876.48/x
3. Step 3: Cross multiply
   21,458.72x = 32,187 × 5,876.48
4. Step 4: Simplify right side
   21,458.72x = 189,146,261.76
5. Step 5: Solve for x
   x = 189,146,261.76/21,458.72
6. Step 6: Final answer
   x = 8,814.42