Finding the Fourth Proportional to 13,898.88, 19,182.69 and 7,930.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,898.88 : 19,182.69 = 7,930.80 : x
2. Step 2: Convert to fraction form
   13,898.88/19,182.69 = 7,930.80/x
3. Step 3: Cross multiply
   13,898.88x = 19,182.69 × 7,930.80
4. Step 4: Simplify right side
   13,898.88x = 152,134,077.85
5. Step 5: Solve for x
   x = 152,134,077.85/13,898.88
6. Step 6: Final answer
   x = 10,945.78