Finding the Fourth Proportional to 10,364.90, 15,549.57 and 3,345.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,364.90 : 15,549.57 = 3,345.31 : x
2. Step 2: Convert to fraction form
   10,364.90/15,549.57 = 3,345.31/x
3. Step 3: Cross multiply
   10,364.90x = 15,549.57 × 3,345.31
4. Step 4: Simplify right side
   10,364.90x = 52,018,132.02
5. Step 5: Solve for x
   x = 52,018,132.02/10,364.90
6. Step 6: Final answer
   x = 5,018.68