Finding the Fourth Proportional to 10,271, 15,407.72 and 3,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,271 : 15,407.72 = 3,345.50 : x
2. Step 2: Convert to fraction form
   10,271/15,407.72 = 3,345.50/x
3. Step 3: Cross multiply
   10,271x = 15,407.72 × 3,345.50
4. Step 4: Simplify right side
   10,271x = 51,546,510.53
5. Step 5: Solve for x
   x = 51,546,510.53/10,271
6. Step 6: Final answer
   x = 5,018.65