Finding the Fourth Proportional to 10,270.89, 14,173.80 and 5,555.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,270.89 : 14,173.80 = 5,555.16 : x
2. Step 2: Convert to fraction form
   10,270.89/14,173.80 = 5,555.16/x
3. Step 3: Cross multiply
   10,270.89x = 14,173.80 × 5,555.16
4. Step 4: Simplify right side
   10,270.89x = 78,737,726.81
5. Step 5: Solve for x
   x = 78,737,726.81/10,270.89
6. Step 6: Final answer
   x = 7,666.11