Finding the Fourth Proportional to 238,426.50, 357,640.56 and 72,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,426.50 : 357,640.56 = 72,214.50 : x
2. Step 2: Convert to fraction form
   238,426.50/357,640.56 = 72,214.50/x
3. Step 3: Cross multiply
   238,426.50x = 357,640.56 × 72,214.50
4. Step 4: Simplify right side
   238,426.50x = 25,826,834,220.12
5. Step 5: Solve for x
   x = 25,826,834,220.12/238,426.50
6. Step 6: Final answer
   x = 108,322.00