Finding the Fourth Proportional to 19,480.61, 29,199.96 and 8,392.52

Step by Step Solution

1. Step 1: Write the proportion equation
   19,480.61 : 29,199.96 = 8,392.52 : x
2. Step 2: Convert to fraction form
   19,480.61/29,199.96 = 8,392.52/x
3. Step 3: Cross multiply
   19,480.61x = 29,199.96 × 8,392.52
4. Step 4: Simplify right side
   19,480.61x = 245,061,321.30
5. Step 5: Solve for x
   x = 245,061,321.30/19,480.61
6. Step 6: Final answer
   x = 12,579.75