Finding the Fourth Proportional to 165,457.59, 228,381.39 and 143,037.42

Step by Step Solution

1. Step 1: Write the proportion equation
   165,457.59 : 228,381.39 = 143,037.42 : x
2. Step 2: Convert to fraction form
   165,457.59/228,381.39 = 143,037.42/x
3. Step 3: Cross multiply
   165,457.59x = 228,381.39 × 143,037.42
4. Step 4: Simplify right side
   165,457.59x = 32,667,084,801.61
5. Step 5: Solve for x
   x = 32,667,084,801.61/165,457.59
6. Step 6: Final answer
   x = 197,434.79