Finding the Fourth Proportional to 89,074.23, 133,626.06 and 42,311.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,074.23 : 133,626.06 = 42,311.31 : x
2. Step 2: Convert to fraction form
   89,074.23/133,626.06 = 42,311.31/x
3. Step 3: Cross multiply
   89,074.23x = 133,626.06 × 42,311.31
4. Step 4: Simplify right side
   89,074.23x = 5,653,893,648.74
5. Step 5: Solve for x
   x = 5,653,893,648.74/89,074.23
6. Step 6: Final answer
   x = 63,473.95