Finding the Fourth Proportional to 89,648.69, 134,434.15 and 30,468.47

Step by Step Solution

1. Step 1: Write the proportion equation
   89,648.69 : 134,434.15 = 30,468.47 : x
2. Step 2: Convert to fraction form
   89,648.69/134,434.15 = 30,468.47/x
3. Step 3: Cross multiply
   89,648.69x = 134,434.15 × 30,468.47
4. Step 4: Simplify right side
   89,648.69x = 4,096,002,117.91
5. Step 5: Solve for x
   x = 4,096,002,117.91/89,648.69
6. Step 6: Final answer
   x = 45,689.48