Finding the Fourth Proportional to 218,692.09, 301,851.39 and 142,401.61

Step by Step Solution

1. Step 1: Write the proportion equation
   218,692.09 : 301,851.39 = 142,401.61 : x
2. Step 2: Convert to fraction form
   218,692.09/301,851.39 = 142,401.61/x
3. Step 3: Cross multiply
   218,692.09x = 301,851.39 × 142,401.61
4. Step 4: Simplify right side
   218,692.09x = 42,984,123,916.74
5. Step 5: Solve for x
   x = 42,984,123,916.74/218,692.09
6. Step 6: Final answer
   x = 196,550.89