Finding the Fourth Proportional to 31,369,109.06, 43,292,743.63 and 18,986,017.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,369,109.06 : 43,292,743.63 = 18,986,017.25 : x
2. Step 2: Convert to fraction form
   31,369,109.06/43,292,743.63 = 18,986,017.25/x
3. Step 3: Cross multiply
   31,369,109.06x = 43,292,743.63 × 18,986,017.25
4. Step 4: Simplify right side
   31,369,109.06x = 821,956,777,095,078.88
5. Step 5: Solve for x
   x = 821,956,777,095,078.88/31,369,109.06
6. Step 6: Final answer
   x = 26,202,745.37