Finding the Fourth Proportional to 525,019.56, 787,540.50 and 188,082.12

Step by Step Solution

1. Step 1: Write the proportion equation
   525,019.56 : 787,540.50 = 188,082.12 : x
2. Step 2: Convert to fraction form
   525,019.56/787,540.50 = 188,082.12/x
3. Step 3: Cross multiply
   525,019.56x = 787,540.50 × 188,082.12
4. Step 4: Simplify right side
   525,019.56x = 148,122,286,825.86
5. Step 5: Solve for x
   x = 148,122,286,825.86/525,019.56
6. Step 6: Final answer
   x = 282,127.18