Finding the Fourth Proportional to 12,570.96, 18,839.42 and 4,775.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,570.96 : 18,839.42 = 4,775.52 : x
2. Step 2: Convert to fraction form
   12,570.96/18,839.42 = 4,775.52/x
3. Step 3: Cross multiply
   12,570.96x = 18,839.42 × 4,775.52
4. Step 4: Simplify right side
   12,570.96x = 89,968,027.00
5. Step 5: Solve for x
   x = 89,968,027.00/12,570.96
6. Step 6: Final answer
   x = 7,156.81