Finding the Fourth Proportional to 9,111.62, 12,573.96 and 5,133.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.62 : 12,573.96 = 5,133.44 : x
2. Step 2: Convert to fraction form
   9,111.62/12,573.96 = 5,133.44/x
3. Step 3: Cross multiply
   9,111.62x = 12,573.96 × 5,133.44
4. Step 4: Simplify right side
   9,111.62x = 64,547,669.22
5. Step 5: Solve for x
   x = 64,547,669.22/9,111.62
6. Step 6: Final answer
   x = 7,084.10