Finding the Fourth Proportional to 60,021.57, 90,088.86 and 30,460.62

Step by Step Solution

1. Step 1: Write the proportion equation
   60,021.57 : 90,088.86 = 30,460.62 : x
2. Step 2: Convert to fraction form
   60,021.57/90,088.86 = 30,460.62/x
3. Step 3: Cross multiply
   60,021.57x = 90,088.86 × 30,460.62
4. Step 4: Simplify right side
   60,021.57x = 2,744,162,530.69
5. Step 5: Solve for x
   x = 2,744,162,530.69/60,021.57
6. Step 6: Final answer
   x = 45,719.61