Finding the Fourth Proportional to 9,337.63, 12,885.86 and 5,145.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.63 : 12,885.86 = 5,145.88 : x
2. Step 2: Convert to fraction form
   9,337.63/12,885.86 = 5,145.88/x
3. Step 3: Cross multiply
   9,337.63x = 12,885.86 × 5,145.88
4. Step 4: Simplify right side
   9,337.63x = 66,309,089.26
5. Step 5: Solve for x
   x = 66,309,089.26/9,337.63
6. Step 6: Final answer
   x = 7,101.28