Finding the Fourth Proportional to 89,683.04, 134,524.56 and 42,287.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,683.04 : 134,524.56 = 42,287.10 : x
2. Step 2: Convert to fraction form
   89,683.04/134,524.56 = 42,287.10/x
3. Step 3: Cross multiply
   89,683.04x = 134,524.56 × 42,287.10
4. Step 4: Simplify right side
   89,683.04x = 5,688,653,521.18
5. Step 5: Solve for x
   x = 5,688,653,521.18/89,683.04
6. Step 6: Final answer
   x = 63,430.65