Finding the Fourth Proportional to 42,774.72, 64,127.40 and 17,833.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,774.72 : 64,127.40 = 17,833.47 : x
2. Step 2: Convert to fraction form
   42,774.72/64,127.40 = 17,833.47/x
3. Step 3: Cross multiply
   42,774.72x = 64,127.40 × 17,833.47
4. Step 4: Simplify right side
   42,774.72x = 1,143,614,064.08
5. Step 5: Solve for x
   x = 1,143,614,064.08/42,774.72
6. Step 6: Final answer
   x = 26,735.75