Finding the Fourth Proportional to 28,097.78, 42,148.29 and 10,567.76

Step by Step Solution

1. Step 1: Write the proportion equation
   28,097.78 : 42,148.29 = 10,567.76 : x
2. Step 2: Convert to fraction form
   28,097.78/42,148.29 = 10,567.76/x
3. Step 3: Cross multiply
   28,097.78x = 42,148.29 × 10,567.76
4. Step 4: Simplify right side
   28,097.78x = 445,412,802.39
5. Step 5: Solve for x
   x = 445,412,802.39/28,097.78
6. Step 6: Final answer
   x = 15,852.24