Finding the Fourth Proportional to 42,739.06, 64,131.54 and 17,796.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,739.06 : 64,131.54 = 17,796.34 : x
2. Step 2: Convert to fraction form
   42,739.06/64,131.54 = 17,796.34/x
3. Step 3: Cross multiply
   42,739.06x = 64,131.54 × 17,796.34
4. Step 4: Simplify right side
   42,739.06x = 1,141,306,690.56
5. Step 5: Solve for x
   x = 1,141,306,690.56/42,739.06
6. Step 6: Final answer
   x = 26,704.07