Finding the Fourth Proportional to 10,499.94, 15,750.60 and 3,480.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.94 : 15,750.60 = 3,480.43 : x
2. Step 2: Convert to fraction form
   10,499.94/15,750.60 = 3,480.43/x
3. Step 3: Cross multiply
   10,499.94x = 15,750.60 × 3,480.43
4. Step 4: Simplify right side
   10,499.94x = 54,818,860.76
5. Step 5: Solve for x
   x = 54,818,860.76/10,499.94
6. Step 6: Final answer
   x = 5,220.87