Finding the Fourth Proportional to 12,601.47, 17,386.43 and 8,127.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,601.47 : 17,386.43 = 8,127.84 : x
2. Step 2: Convert to fraction form
   12,601.47/17,386.43 = 8,127.84/x
3. Step 3: Cross multiply
   12,601.47x = 17,386.43 × 8,127.84
4. Step 4: Simplify right side
   12,601.47x = 141,314,054.60
5. Step 5: Solve for x
   x = 141,314,054.60/12,601.47
6. Step 6: Final answer
   x = 11,214.10