Finding the Fourth Proportional to 9,089.35, 12,543.15 and 5,111.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,089.35 : 12,543.15 = 5,111.26 : x
2. Step 2: Convert to fraction form
   9,089.35/12,543.15 = 5,111.26/x
3. Step 3: Cross multiply
   9,089.35x = 12,543.15 × 5,111.26
4. Step 4: Simplify right side
   9,089.35x = 64,111,300.87
5. Step 5: Solve for x
   x = 64,111,300.87/9,089.35
6. Step 6: Final answer
   x = 7,053.45