Finding the Fourth Proportional to 21,499.91, 32,166.43 and 18,847.46

Step by Step Solution

1. Step 1: Write the proportion equation
   21,499.91 : 32,166.43 = 18,847.46 : x
2. Step 2: Convert to fraction form
   21,499.91/32,166.43 = 18,847.46/x
3. Step 3: Cross multiply
   21,499.91x = 32,166.43 × 18,847.46
4. Step 4: Simplify right side
   21,499.91x = 606,255,502.77
5. Step 5: Solve for x
   x = 606,255,502.77/21,499.91
6. Step 6: Final answer
   x = 28,198.05