Finding the Fourth Proportional to 10,959.58, 16,441.80 and 5,113

Step by Step Solution

1. Step 1: Write the proportion equation
   10,959.58 : 16,441.80 = 5,113 : x
2. Step 2: Convert to fraction form
   10,959.58/16,441.80 = 5,113/x
3. Step 3: Cross multiply
   10,959.58x = 16,441.80 × 5,113
4. Step 4: Simplify right side
   10,959.58x = 84,066,923.40
5. Step 5: Solve for x
   x = 84,066,923.40/10,959.58
6. Step 6: Final answer
   x = 7,670.63