Finding the Fourth Proportional to 20,776,504.10, 31,164,756.15 and 13,974,059.30

Step by Step Solution

1. Step 1: Write the proportion equation
   20,776,504.10 : 31,164,756.15 = 13,974,059.30 : x
2. Step 2: Convert to fraction form
   20,776,504.10/31,164,756.15 = 13,974,059.30/x
3. Step 3: Cross multiply
   20,776,504.10x = 31,164,756.15 × 13,974,059.30
4. Step 4: Simplify right side
   20,776,504.10x = 435,498,150,510,139.69
5. Step 5: Solve for x
   x = 435,498,150,510,139.69/20,776,504.10
6. Step 6: Final answer
   x = 20,961,088.95