Finding the Fourth Proportional to 42,896.24, 64,254.72 and 42,371.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,896.24 : 64,254.72 = 42,371.36 : x
2. Step 2: Convert to fraction form
   42,896.24/64,254.72 = 42,371.36/x
3. Step 3: Cross multiply
   42,896.24x = 64,254.72 × 42,371.36
4. Step 4: Simplify right side
   42,896.24x = 2,722,559,872.82
5. Step 5: Solve for x
   x = 2,722,559,872.82/42,896.24
6. Step 6: Final answer
   x = 63,468.50