Finding the Fourth Proportional to 72,368.22, 99,870.39 and 40,529.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,368.22 : 99,870.39 = 40,529.82 : x
2. Step 2: Convert to fraction form
   72,368.22/99,870.39 = 40,529.82/x
3. Step 3: Cross multiply
   72,368.22x = 99,870.39 × 40,529.82
4. Step 4: Simplify right side
   72,368.22x = 4,047,728,930.03
5. Step 5: Solve for x
   x = 4,047,728,930.03/72,368.22
6. Step 6: Final answer
   x = 55,932.41