Finding the Fourth Proportional to 10,264.28, 15,386.52 and 4,721.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,264.28 : 15,386.52 = 4,721.42 : x
2. Step 2: Convert to fraction form
   10,264.28/15,386.52 = 4,721.42/x
3. Step 3: Cross multiply
   10,264.28x = 15,386.52 × 4,721.42
4. Step 4: Simplify right side
   10,264.28x = 72,646,223.26
5. Step 5: Solve for x
   x = 72,646,223.26/10,264.28
6. Step 6: Final answer
   x = 7,077.58