Finding the Fourth Proportional to 11,513.32, 17,272.14 and 7,970.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,513.32 : 17,272.14 = 7,970.38 : x
2. Step 2: Convert to fraction form
   11,513.32/17,272.14 = 7,970.38/x
3. Step 3: Cross multiply
   11,513.32x = 17,272.14 × 7,970.38
4. Step 4: Simplify right side
   11,513.32x = 137,665,519.21
5. Step 5: Solve for x
   x = 137,665,519.21/11,513.32
6. Step 6: Final answer
   x = 11,957.07