Finding the Fourth Proportional to 10,345.89, 15,509.43 and 3,770.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.89 : 15,509.43 = 3,770.58 : x
2. Step 2: Convert to fraction form
   10,345.89/15,509.43 = 3,770.58/x
3. Step 3: Cross multiply
   10,345.89x = 15,509.43 × 3,770.58
4. Step 4: Simplify right side
   10,345.89x = 58,479,546.57
5. Step 5: Solve for x
   x = 58,479,546.57/10,345.89
6. Step 6: Final answer
   x = 5,652.44