Finding the Fourth Proportional to 42,897.24, 64,256.22 and 42,372.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897.24 : 64,256.22 = 42,372.36 : x
2. Step 2: Convert to fraction form
   42,897.24/64,256.22 = 42,372.36/x
3. Step 3: Cross multiply
   42,897.24x = 64,256.22 × 42,372.36
4. Step 4: Simplify right side
   42,897.24x = 2,722,687,686.08
5. Step 5: Solve for x
   x = 2,722,687,686.08/42,897.24
6. Step 6: Final answer
   x = 63,470.00