Finding the Fourth Proportional to 13,176.33, 19,763.03 and 3,315.61

Step by Step Solution

1. Step 1: Write the proportion equation
   13,176.33 : 19,763.03 = 3,315.61 : x
2. Step 2: Convert to fraction form
   13,176.33/19,763.03 = 3,315.61/x
3. Step 3: Cross multiply
   13,176.33x = 19,763.03 × 3,315.61
4. Step 4: Simplify right side
   13,176.33x = 65,526,499.90
5. Step 5: Solve for x
   x = 65,526,499.90/13,176.33
6. Step 6: Final answer
   x = 4,973.05