Finding the Fourth Proportional to 22,613,683.70, 31,212,426.83 and 12,829,854.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,613,683.70 : 31,212,426.83 = 12,829,854.89 : x
2. Step 2: Convert to fraction form
   22,613,683.70/31,212,426.83 = 12,829,854.89/x
3. Step 3: Cross multiply
   22,613,683.70x = 31,212,426.83 × 12,829,854.89
4. Step 4: Simplify right side
   22,613,683.70x = 400,450,906,773,431.25
5. Step 5: Solve for x
   x = 400,450,906,773,431.25/22,613,683.70
6. Step 6: Final answer
   x = 17,708,344.74