Finding the Fourth Proportional to 23,685.41, 35,520.72 and 7,886.76

Step by Step Solution

1. Step 1: Write the proportion equation
   23,685.41 : 35,520.72 = 7,886.76 : x
2. Step 2: Convert to fraction form
   23,685.41/35,520.72 = 7,886.76/x
3. Step 3: Cross multiply
   23,685.41x = 35,520.72 × 7,886.76
4. Step 4: Simplify right side
   23,685.41x = 280,143,393.67
5. Step 5: Solve for x
   x = 280,143,393.67/23,685.41
6. Step 6: Final answer
   x = 11,827.68