Finding the Fourth Proportional to 10,387.62, 15,572.16 and 3,812.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,387.62 : 15,572.16 = 3,812.28 : x
2. Step 2: Convert to fraction form
   10,387.62/15,572.16 = 3,812.28/x
3. Step 3: Cross multiply
   10,387.62x = 15,572.16 × 3,812.28
4. Step 4: Simplify right side
   10,387.62x = 59,365,434.12
5. Step 5: Solve for x
   x = 59,365,434.12/10,387.62
6. Step 6: Final answer
   x = 5,715.02