Finding the Fourth Proportional to 89,493.12, 134,155.80 and 30,287.34

Step by Step Solution

1. Step 1: Write the proportion equation
   89,493.12 : 134,155.80 = 30,287.34 : x
2. Step 2: Convert to fraction form
   89,493.12/134,155.80 = 30,287.34/x
3. Step 3: Cross multiply
   89,493.12x = 134,155.80 × 30,287.34
4. Step 4: Simplify right side
   89,493.12x = 4,063,222,327.57
5. Step 5: Solve for x
   x = 4,063,222,327.57/89,493.12
6. Step 6: Final answer
   x = 45,402.62