Finding the Fourth Proportional to 9,434.49, 14,162.10 and 7,971.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,434.49 : 14,162.10 = 7,971.81 : x
2. Step 2: Convert to fraction form
   9,434.49/14,162.10 = 7,971.81/x
3. Step 3: Cross multiply
   9,434.49x = 14,162.10 × 7,971.81
4. Step 4: Simplify right side
   9,434.49x = 112,897,570.40
5. Step 5: Solve for x
   x = 112,897,570.40/9,434.49
6. Step 6: Final answer
   x = 11,966.47