Finding the Fourth Proportional to 67,437.84, 93,069.30 and 39,147.78

Step by Step Solution

1. Step 1: Write the proportion equation
   67,437.84 : 93,069.30 = 39,147.78 : x
2. Step 2: Convert to fraction form
   67,437.84/93,069.30 = 39,147.78/x
3. Step 3: Cross multiply
   67,437.84x = 93,069.30 × 39,147.78
4. Step 4: Simplify right side
   67,437.84x = 3,643,456,481.15
5. Step 5: Solve for x
   x = 3,643,456,481.15/67,437.84
6. Step 6: Final answer
   x = 54,026.89