Finding the Fourth Proportional to 10,620.90, 14,655.42 and 5,904.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.90 : 14,655.42 = 5,904.27 : x
2. Step 2: Convert to fraction form
   10,620.90/14,655.42 = 5,904.27/x
3. Step 3: Cross multiply
   10,620.90x = 14,655.42 × 5,904.27
4. Step 4: Simplify right side
   10,620.90x = 86,529,556.64
5. Step 5: Solve for x
   x = 86,529,556.64/10,620.90
6. Step 6: Final answer
   x = 8,147.10