Finding the Fourth Proportional to 10,779.12, 14,870.94 and 7,953.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,779.12 : 14,870.94 = 7,953.30 : x
2. Step 2: Convert to fraction form
   10,779.12/14,870.94 = 7,953.30/x
3. Step 3: Cross multiply
   10,779.12x = 14,870.94 × 7,953.30
4. Step 4: Simplify right side
   10,779.12x = 118,273,047.10
5. Step 5: Solve for x
   x = 118,273,047.10/10,779.12
6. Step 6: Final answer
   x = 10,972.42