Finding the Fourth Proportional to 31,215,292.56, 43,074,185.27 and 18,653,854.49

Step by Step Solution

1. Step 1: Write the proportion equation
   31,215,292.56 : 43,074,185.27 = 18,653,854.49 : x
2. Step 2: Convert to fraction form
   31,215,292.56/43,074,185.27 = 18,653,854.49/x
3. Step 3: Cross multiply
   31,215,292.56x = 43,074,185.27 × 18,653,854.49
4. Step 4: Simplify right side
   31,215,292.56x = 803,499,583,993,241.12
5. Step 5: Solve for x
   x = 803,499,583,993,241.12/31,215,292.56
6. Step 6: Final answer
   x = 25,740,575.15