Finding the Fourth Proportional to 23,316.42, 34,978.06 and 8,521.88

Step by Step Solution

1. Step 1: Write the proportion equation
   23,316.42 : 34,978.06 = 8,521.88 : x
2. Step 2: Convert to fraction form
   23,316.42/34,978.06 = 8,521.88/x
3. Step 3: Cross multiply
   23,316.42x = 34,978.06 × 8,521.88
4. Step 4: Simplify right side
   23,316.42x = 298,078,829.95
5. Step 5: Solve for x
   x = 298,078,829.95/23,316.42
6. Step 6: Final answer
   x = 12,784.07