Finding the Fourth Proportional to 10,642.35, 15,958.89 and 3,620.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,642.35 : 15,958.89 = 3,620.46 : x
2. Step 2: Convert to fraction form
   10,642.35/15,958.89 = 3,620.46/x
3. Step 3: Cross multiply
   10,642.35x = 15,958.89 × 3,620.46
4. Step 4: Simplify right side
   10,642.35x = 57,778,522.89
5. Step 5: Solve for x
   x = 57,778,522.89/10,642.35
6. Step 6: Final answer
   x = 5,429.11