Finding the Fourth Proportional to 72,379.61, 108,532.38 and 30,248.21

Step by Step Solution

1. Step 1: Write the proportion equation
   72,379.61 : 108,532.38 = 30,248.21 : x
2. Step 2: Convert to fraction form
   72,379.61/108,532.38 = 30,248.21/x
3. Step 3: Cross multiply
   72,379.61x = 108,532.38 × 30,248.21
4. Step 4: Simplify right side
   72,379.61x = 3,282,909,679.38
5. Step 5: Solve for x
   x = 3,282,909,679.38/72,379.61
6. Step 6: Final answer
   x = 45,356.83