Finding the Fourth Proportional to 10,339.33, 15,499.79 and 4,785.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,339.33 : 15,499.79 = 4,785.05 : x
2. Step 2: Convert to fraction form
   10,339.33/15,499.79 = 4,785.05/x
3. Step 3: Cross multiply
   10,339.33x = 15,499.79 × 4,785.05
4. Step 4: Simplify right side
   10,339.33x = 74,167,270.14
5. Step 5: Solve for x
   x = 74,167,270.14/10,339.33
6. Step 6: Final answer
   x = 7,173.31