Finding the Fourth Proportional to 9,090.52, 12,543.62 and 5,111.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,090.52 : 12,543.62 = 5,111.48 : x
2. Step 2: Convert to fraction form
   9,090.52/12,543.62 = 5,111.48/x
3. Step 3: Cross multiply
   9,090.52x = 12,543.62 × 5,111.48
4. Step 4: Simplify right side
   9,090.52x = 64,116,462.76
5. Step 5: Solve for x
   x = 64,116,462.76/9,090.52
6. Step 6: Final answer
   x = 7,053.11