Finding the Fourth Proportional to 59,769.05, 89,668.69 and 42,921.41

Step by Step Solution

1. Step 1: Write the proportion equation
   59,769.05 : 89,668.69 = 42,921.41 : x
2. Step 2: Convert to fraction form
   59,769.05/89,668.69 = 42,921.41/x
3. Step 3: Cross multiply
   59,769.05x = 89,668.69 × 42,921.41
4. Step 4: Simplify right side
   59,769.05x = 3,848,706,052.01
5. Step 5: Solve for x
   x = 3,848,706,052.01/59,769.05
6. Step 6: Final answer
   x = 64,392.97