Finding the Fourth Proportional to 12,831,642.72, 17,706,989.52 and 7,324,798.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,831,642.72 : 17,706,989.52 = 7,324,798.56 : x
2. Step 2: Convert to fraction form
   12,831,642.72/17,706,989.52 = 7,324,798.56/x
3. Step 3: Cross multiply
   12,831,642.72x = 17,706,989.52 × 7,324,798.56
4. Step 4: Simplify right side
   12,831,642.72x = 129,700,131,338,031.08
5. Step 5: Solve for x
   x = 129,700,131,338,031.08/12,831,642.72
6. Step 6: Final answer
   x = 10,107,835.31