Finding the Fourth Proportional to 60,284.82, 90,447.49 and 42,291.80

Step by Step Solution

1. Step 1: Write the proportion equation
   60,284.82 : 90,447.49 = 42,291.80 : x
2. Step 2: Convert to fraction form
   60,284.82/90,447.49 = 42,291.80/x
3. Step 3: Cross multiply
   60,284.82x = 90,447.49 × 42,291.80
4. Step 4: Simplify right side
   60,284.82x = 3,825,186,859.50
5. Step 5: Solve for x
   x = 3,825,186,859.50/60,284.82
6. Step 6: Final answer
   x = 63,451.91