Finding the Fourth Proportional to 9,131.46, 12,603.24 and 5,152.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.46 : 12,603.24 = 5,152.62 : x
2. Step 2: Convert to fraction form
   9,131.46/12,603.24 = 5,152.62/x
3. Step 3: Cross multiply
   9,131.46x = 12,603.24 × 5,152.62
4. Step 4: Simplify right side
   9,131.46x = 64,939,706.49
5. Step 5: Solve for x
   x = 64,939,706.49/9,131.46
6. Step 6: Final answer
   x = 7,111.65