Finding the Fourth Proportional to 22,326,401.78, 30,801,641.78 and 12,900,964.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,326,401.78 : 30,801,641.78 = 12,900,964.76 : x
2. Step 2: Convert to fraction form
   22,326,401.78/30,801,641.78 = 12,900,964.76/x
3. Step 3: Cross multiply
   22,326,401.78x = 30,801,641.78 × 12,900,964.76
4. Step 4: Simplify right side
   22,326,401.78x = 397,370,895,153,923.69
5. Step 5: Solve for x
   x = 397,370,895,153,923.69/22,326,401.78
6. Step 6: Final answer
   x = 17,798,250.66