Finding the Fourth Proportional to 33,669,691.55, 50,480,298.21 and 20,689,022.31

Step by Step Solution

1. Step 1: Write the proportion equation
   33,669,691.55 : 50,480,298.21 = 20,689,022.31 : x
2. Step 2: Convert to fraction form
   33,669,691.55/50,480,298.21 = 20,689,022.31/x
3. Step 3: Cross multiply
   33,669,691.55x = 50,480,298.21 × 20,689,022.31
4. Step 4: Simplify right side
   33,669,691.55x = 1,044,388,015,778,697.88
5. Step 5: Solve for x
   x = 1,044,388,015,778,697.88/33,669,691.55
6. Step 6: Final answer
   x = 31,018,639.25