Finding the Fourth Proportional to 72,562.48, 108,885.72 and 30,438.80

Step by Step Solution

1. Step 1: Write the proportion equation
   72,562.48 : 108,885.72 = 30,438.80 : x
2. Step 2: Convert to fraction form
   72,562.48/108,885.72 = 30,438.80/x
3. Step 3: Cross multiply
   72,562.48x = 108,885.72 × 30,438.80
4. Step 4: Simplify right side
   72,562.48x = 3,314,350,653.94
5. Step 5: Solve for x
   x = 3,314,350,653.94/72,562.48
6. Step 6: Final answer
   x = 45,675.82