Finding the Fourth Proportional to 72,916.45, 100,624.71 and 39,382.45

Step by Step Solution

1. Step 1: Write the proportion equation
   72,916.45 : 100,624.71 = 39,382.45 : x
2. Step 2: Convert to fraction form
   72,916.45/100,624.71 = 39,382.45/x
3. Step 3: Cross multiply
   72,916.45x = 100,624.71 × 39,382.45
4. Step 4: Simplify right side
   72,916.45x = 3,962,847,610.34
5. Step 5: Solve for x
   x = 3,962,847,610.34/72,916.45
6. Step 6: Final answer
   x = 54,347.79