Finding the Fourth Proportional to 9,996,286.20, 14,995,010.56 and 2,808,380.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,996,286.20 : 14,995,010.56 = 2,808,380.60 : x
2. Step 2: Convert to fraction form
   9,996,286.20/14,995,010.56 = 2,808,380.60/x
3. Step 3: Cross multiply
   9,996,286.20x = 14,995,010.56 × 2,808,380.60
4. Step 4: Simplify right side
   9,996,286.20x = 42,111,696,753,499.14
5. Step 5: Solve for x
   x = 42,111,696,753,499.14/9,996,286.20
6. Step 6: Final answer
   x = 4,212,734.20