Finding the Fourth Proportional to 10,054.80, 13,876.47 and 5,579.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,054.80 : 13,876.47 = 5,579.01 : x
2. Step 2: Convert to fraction form
   10,054.80/13,876.47 = 5,579.01/x
3. Step 3: Cross multiply
   10,054.80x = 13,876.47 × 5,579.01
4. Step 4: Simplify right side
   10,054.80x = 77,416,964.89
5. Step 5: Solve for x
   x = 77,416,964.89/10,054.80
6. Step 6: Final answer
   x = 7,699.50