Finding the Fourth Proportional to 10,888.76, 15,026.46 and 5,920.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,888.76 : 15,026.46 = 5,920.76 : x
2. Step 2: Convert to fraction form
   10,888.76/15,026.46 = 5,920.76/x
3. Step 3: Cross multiply
   10,888.76x = 15,026.46 × 5,920.76
4. Step 4: Simplify right side
   10,888.76x = 88,968,063.31
5. Step 5: Solve for x
   x = 88,968,063.31/10,888.76
6. Step 6: Final answer
   x = 8,170.63