Finding the Fourth Proportional to 422,503.50, 583,054.83 and 243,655.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,503.50 : 583,054.83 = 243,655.50 : x
2. Step 2: Convert to fraction form
   422,503.50/583,054.83 = 243,655.50/x
3. Step 3: Cross multiply
   422,503.50x = 583,054.83 × 243,655.50
4. Step 4: Simplify right side
   422,503.50x = 142,064,516,131.07
5. Step 5: Solve for x
   x = 142,064,516,131.07/422,503.50
6. Step 6: Final answer
   x = 336,244.59