Finding the Fourth Proportional to 89,279.29, 133,904.31 and 33,106.20

Step by Step Solution

1. Step 1: Write the proportion equation
   89,279.29 : 133,904.31 = 33,106.20 : x
2. Step 2: Convert to fraction form
   89,279.29/133,904.31 = 33,106.20/x
3. Step 3: Cross multiply
   89,279.29x = 133,904.31 × 33,106.20
4. Step 4: Simplify right side
   89,279.29x = 4,433,062,867.72
5. Step 5: Solve for x
   x = 4,433,062,867.72/89,279.29
6. Step 6: Final answer
   x = 49,653.88