Finding the Fourth Proportional to 9,122.06, 13,672.38 and 3,855.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,122.06 : 13,672.38 = 3,855.98 : x
2. Step 2: Convert to fraction form
   9,122.06/13,672.38 = 3,855.98/x
3. Step 3: Cross multiply
   9,122.06x = 13,672.38 × 3,855.98
4. Step 4: Simplify right side
   9,122.06x = 52,720,423.83
5. Step 5: Solve for x
   x = 52,720,423.83/9,122.06
6. Step 6: Final answer
   x = 5,779.44