Finding the Fourth Proportional to 89,488.72, 134,250.18 and 30,308.56

Step by Step Solution

1. Step 1: Write the proportion equation
   89,488.72 : 134,250.18 = 30,308.56 : x
2. Step 2: Convert to fraction form
   89,488.72/134,250.18 = 30,308.56/x
3. Step 3: Cross multiply
   89,488.72x = 134,250.18 × 30,308.56
4. Step 4: Simplify right side
   89,488.72x = 4,068,929,635.54
5. Step 5: Solve for x
   x = 4,068,929,635.54/89,488.72
6. Step 6: Final answer
   x = 45,468.63