Finding the Fourth Proportional to 152,718.05, 229,022.17 and 52,851.12

Step by Step Solution

1. Step 1: Write the proportion equation
   152,718.05 : 229,022.17 = 52,851.12 : x
2. Step 2: Convert to fraction form
   152,718.05/229,022.17 = 52,851.12/x
3. Step 3: Cross multiply
   152,718.05x = 229,022.17 × 52,851.12
4. Step 4: Simplify right side
   152,718.05x = 12,104,078,189.33
5. Step 5: Solve for x
   x = 12,104,078,189.33/152,718.05
6. Step 6: Final answer
   x = 79,257.68