Finding the Fourth Proportional to 28,308.71, 42,462.92 and 7,248.71

Step by Step Solution

1. Step 1: Write the proportion equation
   28,308.71 : 42,462.92 = 7,248.71 : x
2. Step 2: Convert to fraction form
   28,308.71/42,462.92 = 7,248.71/x
3. Step 3: Cross multiply
   28,308.71x = 42,462.92 × 7,248.71
4. Step 4: Simplify right side
   28,308.71x = 307,801,476.34
5. Step 5: Solve for x
   x = 307,801,476.34/28,308.71
6. Step 6: Final answer
   x = 10,873.03