Finding the Fourth Proportional to 12,779.37, 17,635.32 and 7,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,779.37 : 17,635.32 = 7,114.50 : x
2. Step 2: Convert to fraction form
   12,779.37/17,635.32 = 7,114.50/x
3. Step 3: Cross multiply
   12,779.37x = 17,635.32 × 7,114.50
4. Step 4: Simplify right side
   12,779.37x = 125,466,484.14
5. Step 5: Solve for x
   x = 125,466,484.14/12,779.37
6. Step 6: Final answer
   x = 9,817.89