Finding the Fourth Proportional to 73,152.50, 109,728.80 and 17,748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,152.50 : 109,728.80 = 17,748.50 : x
2. Step 2: Convert to fraction form
   73,152.50/109,728.80 = 17,748.50/x
3. Step 3: Cross multiply
   73,152.50x = 109,728.80 × 17,748.50
4. Step 4: Simplify right side
   73,152.50x = 1,947,521,606.80
5. Step 5: Solve for x
   x = 1,947,521,606.80/73,152.50
6. Step 6: Final answer
   x = 26,622.76