Finding the Fourth Proportional to 12,066.38, 16,637.12 and 10,384.90

Step by Step Solution

1. Step 1: Write the proportion equation
   12,066.38 : 16,637.12 = 10,384.90 : x
2. Step 2: Convert to fraction form
   12,066.38/16,637.12 = 10,384.90/x
3. Step 3: Cross multiply
   12,066.38x = 16,637.12 × 10,384.90
4. Step 4: Simplify right side
   12,066.38x = 172,774,848.91
5. Step 5: Solve for x
   x = 172,774,848.91/12,066.38
6. Step 6: Final answer
   x = 14,318.69