Finding the Fourth Proportional to 9,131.35, 12,601.26 and 5,152.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,131.35 : 12,601.26 = 5,152.49 : x
2. Step 2: Convert to fraction form
   9,131.35/12,601.26 = 5,152.49/x
3. Step 3: Cross multiply
   9,131.35x = 12,601.26 × 5,152.49
4. Step 4: Simplify right side
   9,131.35x = 64,927,866.14
5. Step 5: Solve for x
   x = 64,927,866.14/9,131.35
6. Step 6: Final answer
   x = 7,110.43