Finding the Fourth Proportional to 10,925.18, 15,081.90 and 7,394.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,925.18 : 15,081.90 = 7,394.12 : x
2. Step 2: Convert to fraction form
   10,925.18/15,081.90 = 7,394.12/x
3. Step 3: Cross multiply
   10,925.18x = 15,081.90 × 7,394.12
4. Step 4: Simplify right side
   10,925.18x = 111,517,378.43
5. Step 5: Solve for x
   x = 111,517,378.43/10,925.18
6. Step 6: Final answer
   x = 10,207.37