Finding the Fourth Proportional to 238,423.50, 357,636.06 and 72,211.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,423.50 : 357,636.06 = 72,211.50 : x
2. Step 2: Convert to fraction form
   238,423.50/357,636.06 = 72,211.50/x
3. Step 3: Cross multiply
   238,423.50x = 357,636.06 × 72,211.50
4. Step 4: Simplify right side
   238,423.50x = 25,825,436,346.69
5. Step 5: Solve for x
   x = 25,825,436,346.69/238,423.50
6. Step 6: Final answer
   x = 108,317.50