Finding the Fourth Proportional to 9,691.79, 13,373.52 and 5,443.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,691.79 : 13,373.52 = 5,443.07 : x
2. Step 2: Convert to fraction form
   9,691.79/13,373.52 = 5,443.07/x
3. Step 3: Cross multiply
   9,691.79x = 13,373.52 × 5,443.07
4. Step 4: Simplify right side
   9,691.79x = 72,793,005.51
5. Step 5: Solve for x
   x = 72,793,005.51/9,691.79
6. Step 6: Final answer
   x = 7,510.79