Finding the Fourth Proportional to 10,042.72, 15,069.25 and 4,783.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,042.72 : 15,069.25 = 4,783.70 : x
2. Step 2: Convert to fraction form
   10,042.72/15,069.25 = 4,783.70/x
3. Step 3: Cross multiply
   10,042.72x = 15,069.25 × 4,783.70
4. Step 4: Simplify right side
   10,042.72x = 72,086,771.23
5. Step 5: Solve for x
   x = 72,086,771.23/10,042.72
6. Step 6: Final answer
   x = 7,178.01