Finding the Fourth Proportional to 40,025,860.48, 55,235,734.71 and 21,691,145.98

Step by Step Solution

1. Step 1: Write the proportion equation
   40,025,860.48 : 55,235,734.71 = 21,691,145.98 : x
2. Step 2: Convert to fraction form
   40,025,860.48/55,235,734.71 = 21,691,145.98/x
3. Step 3: Cross multiply
   40,025,860.48x = 55,235,734.71 × 21,691,145.98
4. Step 4: Simplify right side
   40,025,860.48x = 1,198,126,384,907,163
5. Step 5: Solve for x
   x = 1,198,126,384,907,163/40,025,860.48
6. Step 6: Final answer
   x = 29,933,807.06