Finding the Fourth Proportional to 72,026.01, 99,396.18 and 40,196.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,026.01 : 99,396.18 = 40,196.25 : x
2. Step 2: Convert to fraction form
   72,026.01/99,396.18 = 40,196.25/x
3. Step 3: Cross multiply
   72,026.01x = 99,396.18 × 40,196.25
4. Step 4: Simplify right side
   72,026.01x = 3,995,353,700.33
5. Step 5: Solve for x
   x = 3,995,353,700.33/72,026.01
6. Step 6: Final answer
   x = 55,470.98