Finding the Fourth Proportional to 10,335.86, 15,503.58 and 3,315.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,335.86 : 15,503.58 = 3,315.89 : x
2. Step 2: Convert to fraction form
   10,335.86/15,503.58 = 3,315.89/x
3. Step 3: Cross multiply
   10,335.86x = 15,503.58 × 3,315.89
4. Step 4: Simplify right side
   10,335.86x = 51,408,165.89
5. Step 5: Solve for x
   x = 51,408,165.89/10,335.86
6. Step 6: Final answer
   x = 4,973.77