Finding the Fourth Proportional to 9,419.04, 14,128.83 and 5,256.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,419.04 : 14,128.83 = 5,256.72 : x
2. Step 2: Convert to fraction form
   9,419.04/14,128.83 = 5,256.72/x
3. Step 3: Cross multiply
   9,419.04x = 14,128.83 × 5,256.72
4. Step 4: Simplify right side
   9,419.04x = 74,271,303.24
5. Step 5: Solve for x
   x = 74,271,303.24/9,419.04
6. Step 6: Final answer
   x = 7,885.23