Finding the Fourth Proportional to 9,131.34, 12,594.74 and 8,826.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.34 : 12,594.74 = 8,826.50 : x
2. Step 2: Convert to fraction form
   9,131.34/12,594.74 = 8,826.50/x
3. Step 3: Cross multiply
   9,131.34x = 12,594.74 × 8,826.50
4. Step 4: Simplify right side
   9,131.34x = 111,167,472.61
5. Step 5: Solve for x
   x = 111,167,472.61/9,131.34
6. Step 6: Final answer
   x = 12,174.28