Finding the Fourth Proportional to 42,726.72, 64,084.80 and 17,751.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,726.72 : 64,084.80 = 17,751.36 : x
2. Step 2: Convert to fraction form
   42,726.72/64,084.80 = 17,751.36/x
3. Step 3: Cross multiply
   42,726.72x = 64,084.80 × 17,751.36
4. Step 4: Simplify right side
   42,726.72x = 1,137,592,355.33
5. Step 5: Solve for x
   x = 1,137,592,355.33/42,726.72
6. Step 6: Final answer
   x = 26,624.85