Finding the Fourth Proportional to 23,035,885.60, 31,788,913.68 and 12,722,386.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,035,885.60 : 31,788,913.68 = 12,722,386.72 : x
2. Step 2: Convert to fraction form
   23,035,885.60/31,788,913.68 = 12,722,386.72/x
3. Step 3: Cross multiply
   23,035,885.60x = 31,788,913.68 × 12,722,386.72
4. Step 4: Simplify right side
   23,035,885.60x = 404,430,853,245,658.38
5. Step 5: Solve for x
   x = 404,430,853,245,658.38/23,035,885.60
6. Step 6: Final answer
   x = 17,556,557.64