Finding the Fourth Proportional to 277,329.89, 382,715.18 and 156,470.10

Step by Step Solution

1. Step 1: Write the proportion equation
   277,329.89 : 382,715.18 = 156,470.10 : x
2. Step 2: Convert to fraction form
   277,329.89/382,715.18 = 156,470.10/x
3. Step 3: Cross multiply
   277,329.89x = 382,715.18 × 156,470.10
4. Step 4: Simplify right side
   277,329.89x = 59,883,480,855.35
5. Step 5: Solve for x
   x = 59,883,480,855.35/277,329.89
6. Step 6: Final answer
   x = 215,928.69