Finding the Fourth Proportional to 73,122.72, 109,684 and 17,718.72

Step by Step Solution

1. Step 1: Write the proportion equation
   73,122.72 : 109,684 = 17,718.72 : x
2. Step 2: Convert to fraction form
   73,122.72/109,684 = 17,718.72/x
3. Step 3: Cross multiply
   73,122.72x = 109,684 × 17,718.72
4. Step 4: Simplify right side
   73,122.72x = 1,943,460,084.48
5. Step 5: Solve for x
   x = 1,943,460,084.48/73,122.72
6. Step 6: Final answer
   x = 26,578.06