Finding the Fourth Proportional to 10,047.12, 13,864.79 and 5,570.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,047.12 : 13,864.79 = 5,570.84 : x
2. Step 2: Convert to fraction form
   10,047.12/13,864.79 = 5,570.84/x
3. Step 3: Cross multiply
   10,047.12x = 13,864.79 × 5,570.84
4. Step 4: Simplify right side
   10,047.12x = 77,238,429.55
5. Step 5: Solve for x
   x = 77,238,429.55/10,047.12
6. Step 6: Final answer
   x = 7,687.62