Finding the Fourth Proportional to 12,887.52, 19,333.71 and 7,347.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,887.52 : 19,333.71 = 7,347.12 : x
2. Step 2: Convert to fraction form
   12,887.52/19,333.71 = 7,347.12/x
3. Step 3: Cross multiply
   12,887.52x = 19,333.71 × 7,347.12
4. Step 4: Simplify right side
   12,887.52x = 142,047,087.42
5. Step 5: Solve for x
   x = 142,047,087.42/12,887.52
6. Step 6: Final answer
   x = 11,022.07