Finding the Fourth Proportional to 10,620.60, 14,656.38 and 5,904.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.60 : 14,656.38 = 5,904.60 : x
2. Step 2: Convert to fraction form
   10,620.60/14,656.38 = 5,904.60/x
3. Step 3: Cross multiply
   10,620.60x = 14,656.38 × 5,904.60
4. Step 4: Simplify right side
   10,620.60x = 86,540,061.35
5. Step 5: Solve for x
   x = 86,540,061.35/10,620.60
6. Step 6: Final answer
   x = 8,148.32