Finding the Fourth Proportional to 12,501.33, 18,705.07 and 7,485.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,501.33 : 18,705.07 = 7,485.27 : x
2. Step 2: Convert to fraction form
   12,501.33/18,705.07 = 7,485.27/x
3. Step 3: Cross multiply
   12,501.33x = 18,705.07 × 7,485.27
4. Step 4: Simplify right side
   12,501.33x = 140,012,499.32
5. Step 5: Solve for x
   x = 140,012,499.32/12,501.33
6. Step 6: Final answer
   x = 11,199.81