Finding the Fourth Proportional to 91,359,388, 137,074,949.28 and 40,205,523.84

Step by Step Solution

1. Step 1: Write the proportion equation
   91,359,388 : 137,074,949.28 = 40,205,523.84 : x
2. Step 2: Convert to fraction form
   91,359,388/137,074,949.28 = 40,205,523.84/x
3. Step 3: Cross multiply
   91,359,388x = 137,074,949.28 × 40,205,523.84
4. Step 4: Simplify right side
   91,359,388x = 5,511,170,141,143,831
5. Step 5: Solve for x
   x = 5,511,170,141,143,831/91,359,388
6. Step 6: Final answer
   x = 60,324,070.27