Finding the Fourth Proportional to 10,127.76, 15,191.68 and 3,886.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,127.76 : 15,191.68 = 3,886.32 : x
2. Step 2: Convert to fraction form
   10,127.76/15,191.68 = 3,886.32/x
3. Step 3: Cross multiply
   10,127.76x = 15,191.68 × 3,886.32
4. Step 4: Simplify right side
   10,127.76x = 59,039,729.82
5. Step 5: Solve for x
   x = 59,039,729.82/10,127.76
6. Step 6: Final answer
   x = 5,829.50