Finding the Fourth Proportional to 28,341.24, 42,510.78 and 7,564.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,341.24 : 42,510.78 = 7,564.56 : x
2. Step 2: Convert to fraction form
   28,341.24/42,510.78 = 7,564.56/x
3. Step 3: Cross multiply
   28,341.24x = 42,510.78 × 7,564.56
4. Step 4: Simplify right side
   28,341.24x = 321,575,345.96
5. Step 5: Solve for x
   x = 321,575,345.96/28,341.24
6. Step 6: Final answer
   x = 11,346.55