Finding the Fourth Proportional to 68,061.24, 101,987.91 and 28,596.78

Step by Step Solution

1. Step 1: Write the proportion equation
   68,061.24 : 101,987.91 = 28,596.78 : x
2. Step 2: Convert to fraction form
   68,061.24/101,987.91 = 28,596.78/x
3. Step 3: Cross multiply
   68,061.24x = 101,987.91 × 28,596.78
4. Step 4: Simplify right side
   68,061.24x = 2,916,525,824.93
5. Step 5: Solve for x
   x = 2,916,525,824.93/68,061.24
6. Step 6: Final answer
   x = 42,851.49