Finding the Fourth Proportional to 72,055.08, 99,441 and 40,230.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,055.08 : 99,441 = 40,230.36 : x
2. Step 2: Convert to fraction form
   72,055.08/99,441 = 40,230.36/x
3. Step 3: Cross multiply
   72,055.08x = 99,441 × 40,230.36
4. Step 4: Simplify right side
   72,055.08x = 4,000,547,228.76
5. Step 5: Solve for x
   x = 4,000,547,228.76/72,055.08
6. Step 6: Final answer
   x = 55,520.68