Finding the Fourth Proportional to 9,404.83, 12,978.63 and 5,425.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404.83 : 12,978.63 = 5,425.93 : x
2. Step 2: Convert to fraction form
   9,404.83/12,978.63 = 5,425.93/x
3. Step 3: Cross multiply
   9,404.83x = 12,978.63 × 5,425.93
4. Step 4: Simplify right side
   9,404.83x = 70,421,137.88
5. Step 5: Solve for x
   x = 70,421,137.88/9,404.83
6. Step 6: Final answer
   x = 7,487.76