Finding the Fourth Proportional to 345,722.50, 518,671.23 and 96,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   345,722.50 : 518,671.23 = 96,404.50 : x
2. Step 2: Convert to fraction form
   345,722.50/518,671.23 = 96,404.50/x
3. Step 3: Cross multiply
   345,722.50x = 518,671.23 × 96,404.50
4. Step 4: Simplify right side
   345,722.50x = 50,002,240,592.54
5. Step 5: Solve for x
   x = 50,002,240,592.54/345,722.50
6. Step 6: Final answer
   x = 144,631.14