Finding the Fourth Proportional to 59,304, 81,858.96 and 42,585.60

Step by Step Solution

1. Step 1: Write the proportion equation
   59,304 : 81,858.96 = 42,585.60 : x
2. Step 2: Convert to fraction form
   59,304/81,858.96 = 42,585.60/x
3. Step 3: Cross multiply
   59,304x = 81,858.96 × 42,585.60
4. Step 4: Simplify right side
   59,304x = 3,486,012,926.98
5. Step 5: Solve for x
   x = 3,486,012,926.98/59,304
6. Step 6: Final answer
   x = 58,782.09