Finding the Fourth Proportional to 9,375.99, 12,939.32 and 5,184.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,375.99 : 12,939.32 = 5,184.51 : x
2. Step 2: Convert to fraction form
   9,375.99/12,939.32 = 5,184.51/x
3. Step 3: Cross multiply
   9,375.99x = 12,939.32 × 5,184.51
4. Step 4: Simplify right side
   9,375.99x = 67,084,008.01
5. Step 5: Solve for x
   x = 67,084,008.01/9,375.99
6. Step 6: Final answer
   x = 7,154.87