Finding the Fourth Proportional to 59,990.96, 89,998.92 and 30,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   59,990.96 : 89,998.92 = 30,020.72 : x
2. Step 2: Convert to fraction form
   59,990.96/89,998.92 = 30,020.72/x
3. Step 3: Cross multiply
   59,990.96x = 89,998.92 × 30,020.72
4. Step 4: Simplify right side
   59,990.96x = 2,701,832,377.62
5. Step 5: Solve for x
   x = 2,701,832,377.62/59,990.96
6. Step 6: Final answer
   x = 45,037.33