Finding the Fourth Proportional to 277,110.72, 382,410.72 and 216,743.04

Step by Step Solution

1. Step 1: Write the proportion equation
   277,110.72 : 382,410.72 = 216,743.04 : x
2. Step 2: Convert to fraction form
   277,110.72/382,410.72 = 216,743.04/x
3. Step 3: Cross multiply
   277,110.72x = 382,410.72 × 216,743.04
4. Step 4: Simplify right side
   277,110.72x = 82,884,861,981.39
5. Step 5: Solve for x
   x = 82,884,861,981.39/277,110.72
6. Step 6: Final answer
   x = 299,103.77