Finding the Fourth Proportional to 13,191.24, 19,791 and 5,801.91

Step by Step Solution

1. Step 1: Write the proportion equation
   13,191.24 : 19,791 = 5,801.91 : x
2. Step 2: Convert to fraction form
   13,191.24/19,791 = 5,801.91/x
3. Step 3: Cross multiply
   13,191.24x = 19,791 × 5,801.91
4. Step 4: Simplify right side
   13,191.24x = 114,825,600.81
5. Step 5: Solve for x
   x = 114,825,600.81/13,191.24
6. Step 6: Final answer
   x = 8,704.69