Finding the Fourth Proportional to 290,665.84, 401,123.60 and 159,849.04

Step by Step Solution

1. Step 1: Write the proportion equation
   290,665.84 : 401,123.60 = 159,849.04 : x
2. Step 2: Convert to fraction form
   290,665.84/401,123.60 = 159,849.04/x
3. Step 3: Cross multiply
   290,665.84x = 401,123.60 × 159,849.04
4. Step 4: Simplify right side
   290,665.84x = 64,119,222,381.34
5. Step 5: Solve for x
   x = 64,119,222,381.34/290,665.84
6. Step 6: Final answer
   x = 220,594.28