Finding the Fourth Proportional to 9,128.46, 13,692.72 and 2,554.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.46 : 13,692.72 = 2,554.71 : x
2. Step 2: Convert to fraction form
   9,128.46/13,692.72 = 2,554.71/x
3. Step 3: Cross multiply
   9,128.46x = 13,692.72 × 2,554.71
4. Step 4: Simplify right side
   9,128.46x = 34,980,886.94
5. Step 5: Solve for x
   x = 34,980,886.94/9,128.46
6. Step 6: Final answer
   x = 3,832.07