Finding the Fourth Proportional to 622,890.72, 933,744.96 and 201,870.72

Step by Step Solution

1. Step 1: Write the proportion equation
   622,890.72 : 933,744.96 = 201,870.72 : x
2. Step 2: Convert to fraction form
   622,890.72/933,744.96 = 201,870.72/x
3. Step 3: Cross multiply
   622,890.72x = 933,744.96 × 201,870.72
4. Step 4: Simplify right side
   622,890.72x = 188,495,767,371.57
5. Step 5: Solve for x
   x = 188,495,767,371.57/622,890.72
6. Step 6: Final answer
   x = 302,614.51