Finding the Fourth Proportional to 23,378.76, 35,072.71 and 8,587.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,378.76 : 35,072.71 = 8,587.79 : x
2. Step 2: Convert to fraction form
   23,378.76/35,072.71 = 8,587.79/x
3. Step 3: Cross multiply
   23,378.76x = 35,072.71 × 8,587.79
4. Step 4: Simplify right side
   23,378.76x = 301,196,892.85
5. Step 5: Solve for x
   x = 301,196,892.85/23,378.76
6. Step 6: Final answer
   x = 12,883.36