Finding the Fourth Proportional to 72,189.10, 108,210.96 and 30,092.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,189.10 : 108,210.96 = 30,092.49 : x
2. Step 2: Convert to fraction form
   72,189.10/108,210.96 = 30,092.49/x
3. Step 3: Cross multiply
   72,189.10x = 108,210.96 × 30,092.49
4. Step 4: Simplify right side
   72,189.10x = 3,256,337,081.23
5. Step 5: Solve for x
   x = 3,256,337,081.23/72,189.10
6. Step 6: Final answer
   x = 45,108.43