Finding the Fourth Proportional to 13,151.01, 18,149.70 and 7,845.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,151.01 : 18,149.70 = 7,845.83 : x
2. Step 2: Convert to fraction form
   13,151.01/18,149.70 = 7,845.83/x
3. Step 3: Cross multiply
   13,151.01x = 18,149.70 × 7,845.83
4. Step 4: Simplify right side
   13,151.01x = 142,399,467.49
5. Step 5: Solve for x
   x = 142,399,467.49/13,151.01
6. Step 6: Final answer
   x = 10,828.02