Finding the Fourth Proportional to 9,189.03, 12,683.75 and 5,411.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,189.03 : 12,683.75 = 5,411.94 : x
2. Step 2: Convert to fraction form
   9,189.03/12,683.75 = 5,411.94/x
3. Step 3: Cross multiply
   9,189.03x = 12,683.75 × 5,411.94
4. Step 4: Simplify right side
   9,189.03x = 68,643,693.98
5. Step 5: Solve for x
   x = 68,643,693.98/9,189.03
6. Step 6: Final answer
   x = 7,470.18