Finding the Fourth Proportional to 9,779.16, 14,669.20 and 3,116.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.16 : 14,669.20 = 3,116.32 : x
2. Step 2: Convert to fraction form
   9,779.16/14,669.20 = 3,116.32/x
3. Step 3: Cross multiply
   9,779.16x = 14,669.20 × 3,116.32
4. Step 4: Simplify right side
   9,779.16x = 45,713,921.34
5. Step 5: Solve for x
   x = 45,713,921.34/9,779.16
6. Step 6: Final answer
   x = 4,674.63