Finding the Fourth Proportional to 10,356.15, 15,520.37 and 3,776.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,356.15 : 15,520.37 = 3,776.13 : x
2. Step 2: Convert to fraction form
   10,356.15/15,520.37 = 3,776.13/x
3. Step 3: Cross multiply
   10,356.15x = 15,520.37 × 3,776.13
4. Step 4: Simplify right side
   10,356.15x = 58,606,915.89
5. Step 5: Solve for x
   x = 58,606,915.89/10,356.15
6. Step 6: Final answer
   x = 5,659.14