Finding the Fourth Proportional to 28,131.41, 42,195.98 and 7,071.62

Step by Step Solution

1. Step 1: Write the proportion equation
   28,131.41 : 42,195.98 = 7,071.62 : x
2. Step 2: Convert to fraction form
   28,131.41/42,195.98 = 7,071.62/x
3. Step 3: Cross multiply
   28,131.41x = 42,195.98 × 7,071.62
4. Step 4: Simplify right side
   28,131.41x = 298,393,742.79
5. Step 5: Solve for x
   x = 298,393,742.79/28,131.41
6. Step 6: Final answer
   x = 10,607.14