Finding the Fourth Proportional to 10,326.39, 15,499.82 and 4,780.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,326.39 : 15,499.82 = 4,780.96 : x
2. Step 2: Convert to fraction form
   10,326.39/15,499.82 = 4,780.96/x
3. Step 3: Cross multiply
   10,326.39x = 15,499.82 × 4,780.96
4. Step 4: Simplify right side
   10,326.39x = 74,103,992.63
5. Step 5: Solve for x
   x = 74,103,992.63/10,326.39
6. Step 6: Final answer
   x = 7,176.18