Finding the Fourth Proportional to 22,947.17, 34,422.47 and 8,918.69

Step by Step Solution

1. Step 1: Write the proportion equation
   22,947.17 : 34,422.47 = 8,918.69 : x
2. Step 2: Convert to fraction form
   22,947.17/34,422.47 = 8,918.69/x
3. Step 3: Cross multiply
   22,947.17x = 34,422.47 × 8,918.69
4. Step 4: Simplify right side
   22,947.17x = 307,003,294.37
5. Step 5: Solve for x
   x = 307,003,294.37/22,947.17
6. Step 6: Final answer
   x = 13,378.70