Finding the Fourth Proportional to 72,903.38, 108,955.61 and 53,223.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,903.38 : 108,955.61 = 53,223.38 : x
2. Step 2: Convert to fraction form
   72,903.38/108,955.61 = 53,223.38/x
3. Step 3: Cross multiply
   72,903.38x = 108,955.61 × 53,223.38
4. Step 4: Simplify right side
   72,903.38x = 5,798,985,834.16
5. Step 5: Solve for x
   x = 5,798,985,834.16/72,903.38
6. Step 6: Final answer
   x = 79,543.44