Finding the Fourth Proportional to 89,044.61, 133,581.49 and 42,281.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,044.61 : 133,581.49 = 42,281.69 : x
2. Step 2: Convert to fraction form
   89,044.61/133,581.49 = 42,281.69/x
3. Step 3: Cross multiply
   89,044.61x = 133,581.49 × 42,281.69
4. Step 4: Simplify right side
   89,044.61x = 5,648,050,376.31
5. Step 5: Solve for x
   x = 5,648,050,376.31/89,044.61
6. Step 6: Final answer
   x = 63,429.45