Finding the Fourth Proportional to 10,923.55, 16,376.82 and 5,079.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.55 : 16,376.82 = 5,079.40 : x
2. Step 2: Convert to fraction form
   10,923.55/16,376.82 = 5,079.40/x
3. Step 3: Cross multiply
   10,923.55x = 16,376.82 × 5,079.40
4. Step 4: Simplify right side
   10,923.55x = 83,184,419.51
5. Step 5: Solve for x
   x = 83,184,419.51/10,923.55
6. Step 6: Final answer
   x = 7,615.15