Finding the Fourth Proportional to 14,261, 19,679.71 and 7,887.49

Step by Step Solution

1. Step 1: Write the proportion equation
   14,261 : 19,679.71 = 7,887.49 : x
2. Step 2: Convert to fraction form
   14,261/19,679.71 = 7,887.49/x
3. Step 3: Cross multiply
   14,261x = 19,679.71 × 7,887.49
4. Step 4: Simplify right side
   14,261x = 155,223,515.83
5. Step 5: Solve for x
   x = 155,223,515.83/14,261
6. Step 6: Final answer
   x = 10,884.48