Finding the Fourth Proportional to 7,256.25, 10,012.01 and 4,272.21

Step by Step Solution

1. Step 1: Write the proportion equation
   7,256.25 : 10,012.01 = 4,272.21 : x
2. Step 2: Convert to fraction form
   7,256.25/10,012.01 = 4,272.21/x
3. Step 3: Cross multiply
   7,256.25x = 10,012.01 × 4,272.21
4. Step 4: Simplify right side
   7,256.25x = 42,773,387.88
5. Step 5: Solve for x
   x = 42,773,387.88/7,256.25
6. Step 6: Final answer
   x = 5,894.70