Finding the Fourth Proportional to 28,492.68, 42,735.78 and 7,714.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,492.68 : 42,735.78 = 7,714.56 : x
2. Step 2: Convert to fraction form
   28,492.68/42,735.78 = 7,714.56/x
3. Step 3: Cross multiply
   28,492.68x = 42,735.78 × 7,714.56
4. Step 4: Simplify right side
   28,492.68x = 329,687,738.96
5. Step 5: Solve for x
   x = 329,687,738.96/28,492.68
6. Step 6: Final answer
   x = 11,570.96