Finding the Fourth Proportional to 12,528.34, 18,749.00 and 7,782.55

Step by Step Solution

1. Step 1: Write the proportion equation
   12,528.34 : 18,749.00 = 7,782.55 : x
2. Step 2: Convert to fraction form
   12,528.34/18,749.00 = 7,782.55/x
3. Step 3: Cross multiply
   12,528.34x = 18,749.00 × 7,782.55
4. Step 4: Simplify right side
   12,528.34x = 145,914,991.04
5. Step 5: Solve for x
   x = 145,914,991.04/12,528.34
6. Step 6: Final answer
   x = 11,646.79