Finding the Fourth Proportional to 525,196.44, 787,806 and 188,259.12

Step by Step Solution

1. Step 1: Write the proportion equation
   525,196.44 : 787,806 = 188,259.12 : x
2. Step 2: Convert to fraction form
   525,196.44/787,806 = 188,259.12/x
3. Step 3: Cross multiply
   525,196.44x = 787,806 × 188,259.12
4. Step 4: Simplify right side
   525,196.44x = 148,311,664,290.72
5. Step 5: Solve for x
   x = 148,311,664,290.72/525,196.44
6. Step 6: Final answer
   x = 282,392.74