Finding the Fourth Proportional to 10,126.80, 15,191.82 and 3,886.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,126.80 : 15,191.82 = 3,886.56 : x
2. Step 2: Convert to fraction form
   10,126.80/15,191.82 = 3,886.56/x
3. Step 3: Cross multiply
   10,126.80x = 15,191.82 × 3,886.56
4. Step 4: Simplify right side
   10,126.80x = 59,043,919.94
5. Step 5: Solve for x
   x = 59,043,919.94/10,126.80
6. Step 6: Final answer
   x = 5,830.46