Finding the Fourth Proportional to 72,685.38, 109,070.37 and 30,562.41

Step by Step Solution

1. Step 1: Write the proportion equation
   72,685.38 : 109,070.37 = 30,562.41 : x
2. Step 2: Convert to fraction form
   72,685.38/109,070.37 = 30,562.41/x
3. Step 3: Cross multiply
   72,685.38x = 109,070.37 × 30,562.41
4. Step 4: Simplify right side
   72,685.38x = 3,333,453,366.79
5. Step 5: Solve for x
   x = 3,333,453,366.79/72,685.38
6. Step 6: Final answer
   x = 45,861.40