Finding the Fourth Proportional to 9,131.54, 12,601.32 and 5,152.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.54 : 12,601.32 = 5,152.55 : x
2. Step 2: Convert to fraction form
   9,131.54/12,601.32 = 5,152.55/x
3. Step 3: Cross multiply
   9,131.54x = 12,601.32 × 5,152.55
4. Step 4: Simplify right side
   9,131.54x = 64,928,931.37
5. Step 5: Solve for x
   x = 64,928,931.37/9,131.54
6. Step 6: Final answer
   x = 7,110.40