Finding the Fourth Proportional to 60,643.58, 91,067.61 and 39,619.58

Step by Step Solution

1. Step 1: Write the proportion equation
   60,643.58 : 91,067.61 = 39,619.58 : x
2. Step 2: Convert to fraction form
   60,643.58/91,067.61 = 39,619.58/x
3. Step 3: Cross multiply
   60,643.58x = 91,067.61 × 39,619.58
4. Step 4: Simplify right side
   60,643.58x = 3,608,060,459.80
5. Step 5: Solve for x
   x = 3,608,060,459.80/60,643.58
6. Step 6: Final answer
   x = 59,496.17