Finding the Fourth Proportional to 22,217,306.01, 30,662,191.35 and 12,798,421.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,217,306.01 : 30,662,191.35 = 12,798,421.89 : x
2. Step 2: Convert to fraction form
   22,217,306.01/30,662,191.35 = 12,798,421.89/x
3. Step 3: Cross multiply
   22,217,306.01x = 30,662,191.35 × 12,798,421.89
4. Step 4: Simplify right side
   22,217,306.01x = 392,427,660,969,208.69
5. Step 5: Solve for x
   x = 392,427,660,969,208.69/22,217,306.01
6. Step 6: Final answer
   x = 17,663,152.35