Finding the Fourth Proportional to 11,667.63, 17,501.37 and 6,988.97

Step by Step Solution

1. Step 1: Write the proportion equation
   11,667.63 : 17,501.37 = 6,988.97 : x
2. Step 2: Convert to fraction form
   11,667.63/17,501.37 = 6,988.97/x
3. Step 3: Cross multiply
   11,667.63x = 17,501.37 × 6,988.97
4. Step 4: Simplify right side
   11,667.63x = 122,316,549.89
5. Step 5: Solve for x
   x = 122,316,549.89/11,667.63
6. Step 6: Final answer
   x = 10,483.41