Finding the Fourth Proportional to 10,325.34, 15,487.38 and 2,928.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,325.34 : 15,487.38 = 2,928.78 : x
2. Step 2: Convert to fraction form
   10,325.34/15,487.38 = 2,928.78/x
3. Step 3: Cross multiply
   10,325.34x = 15,487.38 × 2,928.78
4. Step 4: Simplify right side
   10,325.34x = 45,359,128.80
5. Step 5: Solve for x
   x = 45,359,128.80/10,325.34
6. Step 6: Final answer
   x = 4,392.99