Finding the Fourth Proportional to 28,132.88, 42,199.72 and 7,356.38

Step by Step Solution

1. Step 1: Write the proportion equation
   28,132.88 : 42,199.72 = 7,356.38 : x
2. Step 2: Convert to fraction form
   28,132.88/42,199.72 = 7,356.38/x
3. Step 3: Cross multiply
   28,132.88x = 42,199.72 × 7,356.38
4. Step 4: Simplify right side
   28,132.88x = 310,436,946.82
5. Step 5: Solve for x
   x = 310,436,946.82/28,132.88
6. Step 6: Final answer
   x = 11,034.67