Finding the Fourth Proportional to 15,392.50, 23,078.41 and 7,900.61

Step by Step Solution

1. Step 1: Write the proportion equation
   15,392.50 : 23,078.41 = 7,900.61 : x
2. Step 2: Convert to fraction form
   15,392.50/23,078.41 = 7,900.61/x
3. Step 3: Cross multiply
   15,392.50x = 23,078.41 × 7,900.61
4. Step 4: Simplify right side
   15,392.50x = 182,333,401.44
5. Step 5: Solve for x
   x = 182,333,401.44/15,392.50
6. Step 6: Final answer
   x = 11,845.60