Finding the Fourth Proportional to 181,091.56, 249,879.72 and 100,519.69

Step by Step Solution

1. Step 1: Write the proportion equation
   181,091.56 : 249,879.72 = 100,519.69 : x
2. Step 2: Convert to fraction form
   181,091.56/249,879.72 = 100,519.69/x
3. Step 3: Cross multiply
   181,091.56x = 249,879.72 × 100,519.69
4. Step 4: Simplify right side
   181,091.56x = 25,117,831,991.69
5. Step 5: Solve for x
   x = 25,117,831,991.69/181,091.56
6. Step 6: Final answer
   x = 138,702.39