Finding the Fourth Proportional to 59,298, 81,850.68 and 42,579.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,298 : 81,850.68 = 42,579.60 : x
2. Step 2: Convert to fraction form
   59,298/81,850.68 = 42,579.60/x
3. Step 3: Cross multiply
   59,298x = 81,850.68 × 42,579.60
4. Step 4: Simplify right side
   59,298x = 3,485,169,214.13
5. Step 5: Solve for x
   x = 3,485,169,214.13/59,298
6. Step 6: Final answer
   x = 58,773.81