Finding the Fourth Proportional to 422,500.50, 583,050.69 and 243,652.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,500.50 : 583,050.69 = 243,652.50 : x
2. Step 2: Convert to fraction form
   422,500.50/583,050.69 = 243,652.50/x
3. Step 3: Cross multiply
   422,500.50x = 583,050.69 × 243,652.50
4. Step 4: Simplify right side
   422,500.50x = 142,061,758,245.23
5. Step 5: Solve for x
   x = 142,061,758,245.23/422,500.50
6. Step 6: Final answer
   x = 336,240.45