Finding the Fourth Proportional to 89,978.92, 134,820.28 and 30,782.23

Step by Step Solution

1. Step 1: Write the proportion equation
   89,978.92 : 134,820.28 = 30,782.23 : x
2. Step 2: Convert to fraction form
   89,978.92/134,820.28 = 30,782.23/x
3. Step 3: Cross multiply
   89,978.92x = 134,820.28 × 30,782.23
4. Step 4: Simplify right side
   89,978.92x = 4,150,068,867.62
5. Step 5: Solve for x
   x = 4,150,068,867.62/89,978.92
6. Step 6: Final answer
   x = 46,122.68