Finding the Fourth Proportional to 67,856.94, 93,623.31 and 39,557.16

Step by Step Solution

1. Step 1: Write the proportion equation
   67,856.94 : 93,623.31 = 39,557.16 : x
2. Step 2: Convert to fraction form
   67,856.94/93,623.31 = 39,557.16/x
3. Step 3: Cross multiply
   67,856.94x = 93,623.31 × 39,557.16
4. Step 4: Simplify right side
   67,856.94x = 3,703,472,253.40
5. Step 5: Solve for x
   x = 3,703,472,253.40/67,856.94
6. Step 6: Final answer
   x = 54,577.65