Finding the Fourth Proportional to 9,131.34, 12,600.96 and 5,152.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.34 : 12,600.96 = 5,152.40 : x
2. Step 2: Convert to fraction form
   9,131.34/12,600.96 = 5,152.40/x
3. Step 3: Cross multiply
   9,131.34x = 12,600.96 × 5,152.40
4. Step 4: Simplify right side
   9,131.34x = 64,925,123.30
5. Step 5: Solve for x
   x = 64,925,123.30/9,131.34
6. Step 6: Final answer
   x = 7,110.14