Finding the Fourth Proportional to 9,366.32, 12,925.89 and 5,387.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,366.32 : 12,925.89 = 5,387.42 : x
2. Step 2: Convert to fraction form
   9,366.32/12,925.89 = 5,387.42/x
3. Step 3: Cross multiply
   9,366.32x = 12,925.89 × 5,387.42
4. Step 4: Simplify right side
   9,366.32x = 69,637,171.37
5. Step 5: Solve for x
   x = 69,637,171.37/9,366.32
6. Step 6: Final answer
   x = 7,434.85