Finding the Fourth Proportional to 42,726.04, 64,112.04 and 17,783.30

Step by Step Solution

1. Step 1: Write the proportion equation
   42,726.04 : 64,112.04 = 17,783.30 : x
2. Step 2: Convert to fraction form
   42,726.04/64,112.04 = 17,783.30/x
3. Step 3: Cross multiply
   42,726.04x = 64,112.04 × 17,783.30
4. Step 4: Simplify right side
   42,726.04x = 1,140,123,801.21
5. Step 5: Solve for x
   x = 1,140,123,801.21/42,726.04
6. Step 6: Final answer
   x = 26,684.52