Finding the Fourth Proportional to 10,487.78, 14,473.14 and 5,771.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,487.78 : 14,473.14 = 5,771.96 : x
2. Step 2: Convert to fraction form
   10,487.78/14,473.14 = 5,771.96/x
3. Step 3: Cross multiply
   10,487.78x = 14,473.14 × 5,771.96
4. Step 4: Simplify right side
   10,487.78x = 83,538,385.15
5. Step 5: Solve for x
   x = 83,538,385.15/10,487.78
6. Step 6: Final answer
   x = 7,965.31