Finding the Fourth Proportional to 72,027.23, 99,385.69 and 40,196.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,027.23 : 99,385.69 = 40,196.05 : x
2. Step 2: Convert to fraction form
   72,027.23/99,385.69 = 40,196.05/x
3. Step 3: Cross multiply
   72,027.23x = 99,385.69 × 40,196.05
4. Step 4: Simplify right side
   72,027.23x = 3,994,912,164.52
5. Step 5: Solve for x
   x = 3,994,912,164.52/72,027.23
6. Step 6: Final answer
   x = 55,463.92