Finding the Fourth Proportional to 12,314.66, 16,995.30 and 10,071.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,314.66 : 16,995.30 = 10,071.78 : x
2. Step 2: Convert to fraction form
   12,314.66/16,995.30 = 10,071.78/x
3. Step 3: Cross multiply
   12,314.66x = 16,995.30 × 10,071.78
4. Step 4: Simplify right side
   12,314.66x = 171,172,922.63
5. Step 5: Solve for x
   x = 171,172,922.63/12,314.66
6. Step 6: Final answer
   x = 13,899.93