Finding the Fourth Proportional to 64,067.58, 96,101.71 and 42,020.57

Step by Step Solution

1. Step 1: Write the proportion equation
   64,067.58 : 96,101.71 = 42,020.57 : x
2. Step 2: Convert to fraction form
   64,067.58/96,101.71 = 42,020.57/x
3. Step 3: Cross multiply
   64,067.58x = 96,101.71 × 42,020.57
4. Step 4: Simplify right side
   64,067.58x = 4,038,248,632.17
5. Step 5: Solve for x
   x = 4,038,248,632.17/64,067.58
6. Step 6: Final answer
   x = 63,031.08