Finding the Fourth Proportional to 31,321,684.51, 43,229,123.10 and 18,268,943.42

Step by Step Solution

1. Step 1: Write the proportion equation
   31,321,684.51 : 43,229,123.10 = 18,268,943.42 : x
2. Step 2: Convert to fraction form
   31,321,684.51/43,229,123.10 = 18,268,943.42/x
3. Step 3: Cross multiply
   31,321,684.51x = 43,229,123.10 × 18,268,943.42
4. Step 4: Simplify right side
   31,321,684.51x = 789,750,404,010,115.12
5. Step 5: Solve for x
   x = 789,750,404,010,115.12/31,321,684.51
6. Step 6: Final answer
   x = 25,214,174.03