Finding the Fourth Proportional to 18,522,758.55, 25,547,012.98 and 12,647,118.79

Step by Step Solution

1. Step 1: Write the proportion equation
   18,522,758.55 : 25,547,012.98 = 12,647,118.79 : x
2. Step 2: Convert to fraction form
   18,522,758.55/25,547,012.98 = 12,647,118.79/x
3. Step 3: Cross multiply
   18,522,758.55x = 25,547,012.98 × 12,647,118.79
4. Step 4: Simplify right side
   18,522,758.55x = 323,096,107,887,731.88
5. Step 5: Solve for x
   x = 323,096,107,887,731.88/18,522,758.55
6. Step 6: Final answer
   x = 17,443,196.00