Finding the Fourth Proportional to 10,520.53, 15,783.76 and 3,501.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.53 : 15,783.76 = 3,501.17 : x
2. Step 2: Convert to fraction form
   10,520.53/15,783.76 = 3,501.17/x
3. Step 3: Cross multiply
   10,520.53x = 15,783.76 × 3,501.17
4. Step 4: Simplify right side
   10,520.53x = 55,261,700.43
5. Step 5: Solve for x
   x = 55,261,700.43/10,520.53
6. Step 6: Final answer
   x = 5,252.75