Finding the Fourth Proportional to 115,223.29, 172,834.72 and 45,053.39

Step by Step Solution

1. Step 1: Write the proportion equation
   115,223.29 : 172,834.72 = 45,053.39 : x
2. Step 2: Convert to fraction form
   115,223.29/172,834.72 = 45,053.39/x
3. Step 3: Cross multiply
   115,223.29x = 172,834.72 × 45,053.39
4. Step 4: Simplify right side
   115,223.29x = 7,786,790,045.70
5. Step 5: Solve for x
   x = 7,786,790,045.70/115,223.29
6. Step 6: Final answer
   x = 67,580.00