Finding the Fourth Proportional to 89,359.38, 133,842.21 and 59,638.05

Step by Step Solution

1. Step 1: Write the proportion equation
   89,359.38 : 133,842.21 = 59,638.05 : x
2. Step 2: Convert to fraction form
   89,359.38/133,842.21 = 59,638.05/x
3. Step 3: Cross multiply
   89,359.38x = 133,842.21 × 59,638.05
4. Step 4: Simplify right side
   89,359.38x = 7,982,088,412.09
5. Step 5: Solve for x
   x = 7,982,088,412.09/89,359.38
6. Step 6: Final answer
   x = 89,325.69