Finding the Fourth Proportional to 10,054.47, 13,859.82 and 7,926.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,054.47 : 13,859.82 = 7,926.20 : x
2. Step 2: Convert to fraction form
   10,054.47/13,859.82 = 7,926.20/x
3. Step 3: Cross multiply
   10,054.47x = 13,859.82 × 7,926.20
4. Step 4: Simplify right side
   10,054.47x = 109,855,690.45
5. Step 5: Solve for x
   x = 109,855,690.45/10,054.47
6. Step 6: Final answer
   x = 10,926.05