Finding the Fourth Proportional to 11,046.42, 16,545.33 and 7,138.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,046.42 : 16,545.33 = 7,138.98 : x
2. Step 2: Convert to fraction form
   11,046.42/16,545.33 = 7,138.98/x
3. Step 3: Cross multiply
   11,046.42x = 16,545.33 × 7,138.98
4. Step 4: Simplify right side
   11,046.42x = 118,116,779.96
5. Step 5: Solve for x
   x = 118,116,779.96/11,046.42
6. Step 6: Final answer
   x = 10,692.77