Finding the Fourth Proportional to 15,401.50, 21,254.13 and 8,327.98

Step by Step Solution

1. Step 1: Write the proportion equation
   15,401.50 : 21,254.13 = 8,327.98 : x
2. Step 2: Convert to fraction form
   15,401.50/21,254.13 = 8,327.98/x
3. Step 3: Cross multiply
   15,401.50x = 21,254.13 × 8,327.98
4. Step 4: Simplify right side
   15,401.50x = 177,003,969.56
5. Step 5: Solve for x
   x = 177,003,969.56/15,401.50
6. Step 6: Final answer
   x = 11,492.64