Finding the Fourth Proportional to 21,713.72, 32,562.27 and 11,847.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,713.72 : 32,562.27 = 11,847.72 : x
2. Step 2: Convert to fraction form
   21,713.72/32,562.27 = 11,847.72/x
3. Step 3: Cross multiply
   21,713.72x = 32,562.27 × 11,847.72
4. Step 4: Simplify right side
   21,713.72x = 385,788,657.52
5. Step 5: Solve for x
   x = 385,788,657.52/21,713.72
6. Step 6: Final answer
   x = 17,767.05