Finding the Fourth Proportional to 14,150.61, 21,231.72 and 7,485.37

Step by Step Solution

1. Step 1: Write the proportion equation
   14,150.61 : 21,231.72 = 7,485.37 : x
2. Step 2: Convert to fraction form
   14,150.61/21,231.72 = 7,485.37/x
3. Step 3: Cross multiply
   14,150.61x = 21,231.72 × 7,485.37
4. Step 4: Simplify right side
   14,150.61x = 158,927,279.94
5. Step 5: Solve for x
   x = 158,927,279.94/14,150.61
6. Step 6: Final answer
   x = 11,231.13