Finding the Fourth Proportional to 9,478.76, 13,076.54 and 5,699.74

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.76 : 13,076.54 = 5,699.74 : x
2. Step 2: Convert to fraction form
   9,478.76/13,076.54 = 5,699.74/x
3. Step 3: Cross multiply
   9,478.76x = 13,076.54 × 5,699.74
4. Step 4: Simplify right side
   9,478.76x = 74,532,878.10
5. Step 5: Solve for x
   x = 74,532,878.10/9,478.76
6. Step 6: Final answer
   x = 7,863.15