Finding the Fourth Proportional to 9,261.12, 12,780.65 and 5,069.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,261.12 : 12,780.65 = 5,069.37 : x
2. Step 2: Convert to fraction form
   9,261.12/12,780.65 = 5,069.37/x
3. Step 3: Cross multiply
   9,261.12x = 12,780.65 × 5,069.37
4. Step 4: Simplify right side
   9,261.12x = 64,789,818.34
5. Step 5: Solve for x
   x = 64,789,818.34/9,261.12
6. Step 6: Final answer
   x = 6,995.89