Finding the Fourth Proportional to 10,602.18, 15,907.46 and 5,670.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,602.18 : 15,907.46 = 5,670.36 : x
2. Step 2: Convert to fraction form
   10,602.18/15,907.46 = 5,670.36/x
3. Step 3: Cross multiply
   10,602.18x = 15,907.46 × 5,670.36
4. Step 4: Simplify right side
   10,602.18x = 90,200,996.53
5. Step 5: Solve for x
   x = 90,200,996.53/10,602.18
6. Step 6: Final answer
   x = 8,507.78