Finding the Fourth Proportional to 11,440.79, 17,155.10 and 5,891.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,440.79 : 17,155.10 = 5,891.88 : x
2. Step 2: Convert to fraction form
   11,440.79/17,155.10 = 5,891.88/x
3. Step 3: Cross multiply
   11,440.79x = 17,155.10 × 5,891.88
4. Step 4: Simplify right side
   11,440.79x = 101,075,805.32
5. Step 5: Solve for x
   x = 101,075,805.32/11,440.79
6. Step 6: Final answer
   x = 8,834.69