Finding the Fourth Proportional to 10,055.55, 13,877.49 and 5,579.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,055.55 : 13,877.49 = 5,579.76 : x
2. Step 2: Convert to fraction form
   10,055.55/13,877.49 = 5,579.76/x
3. Step 3: Cross multiply
   10,055.55x = 13,877.49 × 5,579.76
4. Step 4: Simplify right side
   10,055.55x = 77,433,063.60
5. Step 5: Solve for x
   x = 77,433,063.60/10,055.55
6. Step 6: Final answer
   x = 7,700.53