Finding the Fourth Proportional to 10,620.16, 14,654.82 and 5,904.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.16 : 14,654.82 = 5,904.88 : x
2. Step 2: Convert to fraction form
   10,620.16/14,654.82 = 5,904.88/x
3. Step 3: Cross multiply
   10,620.16x = 14,654.82 × 5,904.88
4. Step 4: Simplify right side
   10,620.16x = 86,534,953.52
5. Step 5: Solve for x
   x = 86,534,953.52/10,620.16
6. Step 6: Final answer
   x = 8,148.18