Finding the Fourth Proportional to 12,716,697.72, 17,542,870.20 and 7,556,404.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,716,697.72 : 17,542,870.20 = 7,556,404.80 : x
2. Step 2: Convert to fraction form
   12,716,697.72/17,542,870.20 = 7,556,404.80/x
3. Step 3: Cross multiply
   12,716,697.72x = 17,542,870.20 × 7,556,404.80
4. Step 4: Simplify right side
   12,716,697.72x = 132,561,028,585,056.95
5. Step 5: Solve for x
   x = 132,561,028,585,056.95/12,716,697.72
6. Step 6: Final answer
   x = 10,424,170.76