Finding the Fourth Proportional to 9,161.06, 12,641.54 and 5,384.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,161.06 : 12,641.54 = 5,384.37 : x
2. Step 2: Convert to fraction form
   9,161.06/12,641.54 = 5,384.37/x
3. Step 3: Cross multiply
   9,161.06x = 12,641.54 × 5,384.37
4. Step 4: Simplify right side
   9,161.06x = 68,066,665.52
5. Step 5: Solve for x
   x = 68,066,665.52/9,161.06
6. Step 6: Final answer
   x = 7,430.00