Finding the Fourth Proportional to 10,499.90, 15,752.06 and 3,479.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,499.90 : 15,752.06 = 3,479.51 : x
2. Step 2: Convert to fraction form
   10,499.90/15,752.06 = 3,479.51/x
3. Step 3: Cross multiply
   10,499.90x = 15,752.06 × 3,479.51
4. Step 4: Simplify right side
   10,499.90x = 54,809,450.29
5. Step 5: Solve for x
   x = 54,809,450.29/10,499.90
6. Step 6: Final answer
   x = 5,220.00