Finding the Fourth Proportional to 11,667.38, 17,502.89 and 3,878.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.38 : 17,502.89 = 3,878.01 : x
2. Step 2: Convert to fraction form
   11,667.38/17,502.89 = 3,878.01/x
3. Step 3: Cross multiply
   11,667.38x = 17,502.89 × 3,878.01
4. Step 4: Simplify right side
   11,667.38x = 67,876,363.06
5. Step 5: Solve for x
   x = 67,876,363.06/11,667.38
6. Step 6: Final answer
   x = 5,817.62