Finding the Fourth Proportional to 9,779.76, 14,659.92 and 4,773.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,779.76 : 14,659.92 = 4,773.42 : x
2. Step 2: Convert to fraction form
   9,779.76/14,659.92 = 4,773.42/x
3. Step 3: Cross multiply
   9,779.76x = 14,659.92 × 4,773.42
4. Step 4: Simplify right side
   9,779.76x = 69,977,955.33
5. Step 5: Solve for x
   x = 69,977,955.33/9,779.76
6. Step 6: Final answer
   x = 7,155.39