Finding the Fourth Proportional to 22,571,776.56, 31,151,710.79 and 13,404,419.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,571,776.56 : 31,151,710.79 = 13,404,419.31 : x
2. Step 2: Convert to fraction form
   22,571,776.56/31,151,710.79 = 13,404,419.31/x
3. Step 3: Cross multiply
   22,571,776.56x = 31,151,710.79 × 13,404,419.31
4. Step 4: Simplify right side
   22,571,776.56x = 417,570,593,430,230.69
5. Step 5: Solve for x
   x = 417,570,593,430,230.69/22,571,776.56
6. Step 6: Final answer
   x = 18,499,677.79