Finding the Fourth Proportional to 9,359.55, 12,916.06 and 5,111.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,359.55 : 12,916.06 = 5,111.00 : x
2. Step 2: Convert to fraction form
   9,359.55/12,916.06 = 5,111.00/x
3. Step 3: Cross multiply
   9,359.55x = 12,916.06 × 5,111.00
4. Step 4: Simplify right side
   9,359.55x = 66,013,953.74
5. Step 5: Solve for x
   x = 66,013,953.74/9,359.55
6. Step 6: Final answer
   x = 7,053.11