Finding the Fourth Proportional to 59,967.99, 89,853.55 and 20,503.57

Step by Step Solution

1. Step 1: Write the proportion equation
   59,967.99 : 89,853.55 = 20,503.57 : x
2. Step 2: Convert to fraction form
   59,967.99/89,853.55 = 20,503.57/x
3. Step 3: Cross multiply
   59,967.99x = 89,853.55 × 20,503.57
4. Step 4: Simplify right side
   59,967.99x = 1,842,318,552.17
5. Step 5: Solve for x
   x = 1,842,318,552.17/59,967.99
6. Step 6: Final answer
   x = 30,721.70