Finding the Fourth Proportional to 67,730, 93,470.72 and 40,872.04

Step by Step Solution

1. Step 1: Write the proportion equation
   67,730 : 93,470.72 = 40,872.04 : x
2. Step 2: Convert to fraction form
   67,730/93,470.72 = 40,872.04/x
3. Step 3: Cross multiply
   67,730x = 93,470.72 × 40,872.04
4. Step 4: Simplify right side
   67,730x = 3,820,339,006.67
5. Step 5: Solve for x
   x = 3,820,339,006.67/67,730
6. Step 6: Final answer
   x = 56,405.42