Finding the Fourth Proportional to 67,839.31, 93,603.28 and 39,152.89

Step by Step Solution

1. Step 1: Write the proportion equation
   67,839.31 : 93,603.28 = 39,152.89 : x
2. Step 2: Convert to fraction form
   67,839.31/93,603.28 = 39,152.89/x
3. Step 3: Cross multiply
   67,839.31x = 93,603.28 × 39,152.89
4. Step 4: Simplify right side
   67,839.31x = 3,664,838,491.49
5. Step 5: Solve for x
   x = 3,664,838,491.49/67,839.31
6. Step 6: Final answer
   x = 54,022.34