Finding the Fourth Proportional to 10,267.61, 14,169.28 and 5,551.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,267.61 : 14,169.28 = 5,551.89 : x
2. Step 2: Convert to fraction form
   10,267.61/14,169.28 = 5,551.89/x
3. Step 3: Cross multiply
   10,267.61x = 14,169.28 × 5,551.89
4. Step 4: Simplify right side
   10,267.61x = 78,666,283.94
5. Step 5: Solve for x
   x = 78,666,283.94/10,267.61
6. Step 6: Final answer
   x = 7,661.60