Finding the Fourth Proportional to 130,005.24, 179,404.98 and 72,645.72

Step by Step Solution

1. Step 1: Write the proportion equation
   130,005.24 : 179,404.98 = 72,645.72 : x
2. Step 2: Convert to fraction form
   130,005.24/179,404.98 = 72,645.72/x
3. Step 3: Cross multiply
   130,005.24x = 179,404.98 × 72,645.72
4. Step 4: Simplify right side
   130,005.24x = 13,033,003,943.69
5. Step 5: Solve for x
   x = 13,033,003,943.69/130,005.24
6. Step 6: Final answer
   x = 100,249.84