Finding the Fourth Proportional to 14,261.33, 19,680.77 and 7,887.60

Step by Step Solution

1. Step 1: Write the proportion equation
   14,261.33 : 19,680.77 = 7,887.60 : x
2. Step 2: Convert to fraction form
   14,261.33/19,680.77 = 7,887.60/x
3. Step 3: Cross multiply
   14,261.33x = 19,680.77 × 7,887.60
4. Step 4: Simplify right side
   14,261.33x = 155,234,002.01
5. Step 5: Solve for x
   x = 155,234,002.01/14,261.33
6. Step 6: Final answer
   x = 10,884.96