Finding the Fourth Proportional to 10,779.72, 14,871.78 and 7,953.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,779.72 : 14,871.78 = 7,953.87 : x
2. Step 2: Convert to fraction form
   10,779.72/14,871.78 = 7,953.87/x
3. Step 3: Cross multiply
   10,779.72x = 14,871.78 × 7,953.87
4. Step 4: Simplify right side
   10,779.72x = 118,288,260.56
5. Step 5: Solve for x
   x = 118,288,260.56/10,779.72
6. Step 6: Final answer
   x = 10,973.23