Finding the Fourth Proportional to 89,416.21, 134,147.54 and 42,022.57

Step by Step Solution

1. Step 1: Write the proportion equation
   89,416.21 : 134,147.54 = 42,022.57 : x
2. Step 2: Convert to fraction form
   89,416.21/134,147.54 = 42,022.57/x
3. Step 3: Cross multiply
   89,416.21x = 134,147.54 × 42,022.57
4. Step 4: Simplify right side
   89,416.21x = 5,637,224,389.98
5. Step 5: Solve for x
   x = 5,637,224,389.98/89,416.21
6. Step 6: Final answer
   x = 63,044.77