Finding the Fourth Proportional to 89,740.91, 134,611.37 and 42,340.42

Step by Step Solution

1. Step 1: Write the proportion equation
   89,740.91 : 134,611.37 = 42,340.42 : x
2. Step 2: Convert to fraction form
   89,740.91/134,611.37 = 42,340.42/x
3. Step 3: Cross multiply
   89,740.91x = 134,611.37 × 42,340.42
4. Step 4: Simplify right side
   89,740.91x = 5,699,502,057.91
5. Step 5: Solve for x
   x = 5,699,502,057.91/89,740.91
6. Step 6: Final answer
   x = 63,510.63