Finding the Fourth Proportional to 28,094.47, 42,147.98 and 10,564.45

Step by Step Solution

1. Step 1: Write the proportion equation
   28,094.47 : 42,147.98 = 10,564.45 : x
2. Step 2: Convert to fraction form
   28,094.47/42,147.98 = 10,564.45/x
3. Step 3: Cross multiply
   28,094.47x = 42,147.98 × 10,564.45
4. Step 4: Simplify right side
   28,094.47x = 445,270,227.31
5. Step 5: Solve for x
   x = 445,270,227.31/28,094.47
6. Step 6: Final answer
   x = 15,849.03