Finding the Fourth Proportional to 42,751.97, 64,111.53 and 17,803.79

Step by Step Solution

1. Step 1: Write the proportion equation
   42,751.97 : 64,111.53 = 17,803.79 : x
2. Step 2: Convert to fraction form
   42,751.97/64,111.53 = 17,803.79/x
3. Step 3: Cross multiply
   42,751.97x = 64,111.53 × 17,803.79
4. Step 4: Simplify right side
   42,751.97x = 1,141,428,216.70
5. Step 5: Solve for x
   x = 1,141,428,216.70/42,751.97
6. Step 6: Final answer
   x = 26,698.84