Finding the Fourth Proportional to 11,440.58, 17,148.12 and 5,191.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,440.58 : 17,148.12 = 5,191.22 : x
2. Step 2: Convert to fraction form
   11,440.58/17,148.12 = 5,191.22/x
3. Step 3: Cross multiply
   11,440.58x = 17,148.12 × 5,191.22
4. Step 4: Simplify right side
   11,440.58x = 89,019,663.51
5. Step 5: Solve for x
   x = 89,019,663.51/11,440.58
6. Step 6: Final answer
   x = 7,781.04