Finding the Fourth Proportional to 89,452.65, 134,176.20 and 42,056.31

Step by Step Solution

1. Step 1: Write the proportion equation
   89,452.65 : 134,176.20 = 42,056.31 : x
2. Step 2: Convert to fraction form
   89,452.65/134,176.20 = 42,056.31/x
3. Step 3: Cross multiply
   89,452.65x = 134,176.20 × 42,056.31
4. Step 4: Simplify right side
   89,452.65x = 5,642,956,207.27
5. Step 5: Solve for x
   x = 5,642,956,207.27/89,452.65
6. Step 6: Final answer
   x = 63,083.16