Finding the Fourth Proportional to 67,728.02, 93,476.25 and 39,042.47

Step by Step Solution

1. Step 1: Write the proportion equation
   67,728.02 : 93,476.25 = 39,042.47 : x
2. Step 2: Convert to fraction form
   67,728.02/93,476.25 = 39,042.47/x
3. Step 3: Cross multiply
   67,728.02x = 93,476.25 × 39,042.47
4. Step 4: Simplify right side
   67,728.02x = 3,649,543,920.03
5. Step 5: Solve for x
   x = 3,649,543,920.03/67,728.02
6. Step 6: Final answer
   x = 53,885.29