Finding the Fourth Proportional to 342,673.50, 514,196.21 and 143,011.34

Step by Step Solution

1. Step 1: Write the proportion equation
   342,673.50 : 514,196.21 = 143,011.34 : x
2. Step 2: Convert to fraction form
   342,673.50/514,196.21 = 143,011.34/x
3. Step 3: Cross multiply
   342,673.50x = 514,196.21 × 143,011.34
4. Step 4: Simplify right side
   342,673.50x = 73,535,885,728.98
5. Step 5: Solve for x
   x = 73,535,885,728.98/342,673.50
6. Step 6: Final answer
   x = 214,594.61