Finding the Fourth Proportional to 67,667.08, 93,372.78 and 38,990.92

Step by Step Solution

1. Step 1: Write the proportion equation
   67,667.08 : 93,372.78 = 38,990.92 : x
2. Step 2: Convert to fraction form
   67,667.08/93,372.78 = 38,990.92/x
3. Step 3: Cross multiply
   67,667.08x = 93,372.78 × 38,990.92
4. Step 4: Simplify right side
   67,667.08x = 3,640,690,595.16
5. Step 5: Solve for x
   x = 3,640,690,595.16/67,667.08
6. Step 6: Final answer
   x = 53,802.98