Finding the Fourth Proportional to 10,127.16, 15,187.86 and 3,886.74

Step by Step Solution

1. Step 1: Write the proportion equation
   10,127.16 : 15,187.86 = 3,886.74 : x
2. Step 2: Convert to fraction form
   10,127.16/15,187.86 = 3,886.74/x
3. Step 3: Cross multiply
   10,127.16x = 15,187.86 × 3,886.74
4. Step 4: Simplify right side
   10,127.16x = 59,031,262.98
5. Step 5: Solve for x
   x = 59,031,262.98/10,127.16
6. Step 6: Final answer
   x = 5,829.00