Finding the Fourth Proportional to 28,495.37, 42,741.43 and 7,717.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,495.37 : 42,741.43 = 7,717.25 : x
2. Step 2: Convert to fraction form
   28,495.37/42,741.43 = 7,717.25/x
3. Step 3: Cross multiply
   28,495.37x = 42,741.43 × 7,717.25
4. Step 4: Simplify right side
   28,495.37x = 329,846,300.67
5. Step 5: Solve for x
   x = 329,846,300.67/28,495.37
6. Step 6: Final answer
   x = 11,575.43