Finding the Fourth Proportional to 8,389.88, 12,574.06 and 7,088.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,389.88 : 12,574.06 = 7,088.96 : x
2. Step 2: Convert to fraction form
   8,389.88/12,574.06 = 7,088.96/x
3. Step 3: Cross multiply
   8,389.88x = 12,574.06 × 7,088.96
4. Step 4: Simplify right side
   8,389.88x = 89,136,941.39
5. Step 5: Solve for x
   x = 89,136,941.39/8,389.88
6. Step 6: Final answer
   x = 10,624.34