Finding the Fourth Proportional to 7,365.42, 10,164.72 and 4,178.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,365.42 : 10,164.72 = 4,178.88 : x
2. Step 2: Convert to fraction form
   7,365.42/10,164.72 = 4,178.88/x
3. Step 3: Cross multiply
   7,365.42x = 10,164.72 × 4,178.88
4. Step 4: Simplify right side
   7,365.42x = 42,477,145.11
5. Step 5: Solve for x
   x = 42,477,145.11/7,365.42
6. Step 6: Final answer
   x = 5,767.10