Finding the Fourth Proportional to 59,303, 81,857.58 and 42,584.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,303 : 81,857.58 = 42,584.60 : x
2. Step 2: Convert to fraction form
   59,303/81,857.58 = 42,584.60/x
3. Step 3: Cross multiply
   59,303x = 81,857.58 × 42,584.60
4. Step 4: Simplify right side
   59,303x = 3,485,872,301.27
5. Step 5: Solve for x
   x = 3,485,872,301.27/59,303
6. Step 6: Final answer
   x = 58,780.71