Finding the Fourth Proportional to 9,090.84, 12,545.34 and 5,111.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.84 : 12,545.34 = 5,111.96 : x
2. Step 2: Convert to fraction form
   9,090.84/12,545.34 = 5,111.96/x
3. Step 3: Cross multiply
   9,090.84x = 12,545.34 × 5,111.96
4. Step 4: Simplify right side
   9,090.84x = 64,131,276.27
5. Step 5: Solve for x
   x = 64,131,276.27/9,090.84
6. Step 6: Final answer
   x = 7,054.49