Finding the Fourth Proportional to 75,987, 104,862.06 and 42,459.48

Step by Step Solution

1. Step 1: Write the proportion equation
   75,987 : 104,862.06 = 42,459.48 : x
2. Step 2: Convert to fraction form
   75,987/104,862.06 = 42,459.48/x
3. Step 3: Cross multiply
   75,987x = 104,862.06 × 42,459.48
4. Step 4: Simplify right side
   75,987x = 4,452,388,539.33
5. Step 5: Solve for x
   x = 4,452,388,539.33/75,987
6. Step 6: Final answer
   x = 58,594.08