Finding the Fourth Proportional to 10,620.32, 14,656.16 and 5,904.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.32 : 14,656.16 = 5,904.48 : x
2. Step 2: Convert to fraction form
   10,620.32/14,656.16 = 5,904.48/x
3. Step 3: Cross multiply
   10,620.32x = 14,656.16 × 5,904.48
4. Step 4: Simplify right side
   10,620.32x = 86,537,003.60
5. Step 5: Solve for x
   x = 86,537,003.60/10,620.32
6. Step 6: Final answer
   x = 8,148.25