Finding the Fourth Proportional to 72,327.32, 107,948.72 and 67,603.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,327.32 : 107,948.72 = 67,603.40 : x
2. Step 2: Convert to fraction form
   72,327.32/107,948.72 = 67,603.40/x
3. Step 3: Cross multiply
   72,327.32x = 107,948.72 × 67,603.40
4. Step 4: Simplify right side
   72,327.32x = 7,297,700,497.65
5. Step 5: Solve for x
   x = 7,297,700,497.65/72,327.32
6. Step 6: Final answer
   x = 100,898.26