Finding the Fourth Proportional to 6,710.72, 10,070.18 and 4,242.14

Step by Step Solution

1. Step 1: Write the proportion equation
   6,710.72 : 10,070.18 = 4,242.14 : x
2. Step 2: Convert to fraction form
   6,710.72/10,070.18 = 4,242.14/x
3. Step 3: Cross multiply
   6,710.72x = 10,070.18 × 4,242.14
4. Step 4: Simplify right side
   6,710.72x = 42,719,041.82
5. Step 5: Solve for x
   x = 42,719,041.82/6,710.72
6. Step 6: Final answer
   x = 6,365.80