Finding the Fourth Proportional to 72,331.09, 99,805.27 and 45,454.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,331.09 : 99,805.27 = 45,454.56 : x
2. Step 2: Convert to fraction form
   72,331.09/99,805.27 = 45,454.56/x
3. Step 3: Cross multiply
   72,331.09x = 99,805.27 × 45,454.56
4. Step 4: Simplify right side
   72,331.09x = 4,536,605,069.83
5. Step 5: Solve for x
   x = 4,536,605,069.83/72,331.09
6. Step 6: Final answer
   x = 62,719.99