Finding the Fourth Proportional to 113,179.02, 156,196.35 and 72,976.47

Step by Step Solution

1. Step 1: Write the proportion equation
   113,179.02 : 156,196.35 = 72,976.47 : x
2. Step 2: Convert to fraction form
   113,179.02/156,196.35 = 72,976.47/x
3. Step 3: Cross multiply
   113,179.02x = 156,196.35 × 72,976.47
4. Step 4: Simplify right side
   113,179.02x = 11,398,658,249.88
5. Step 5: Solve for x
   x = 11,398,658,249.88/113,179.02
6. Step 6: Final answer
   x = 100,713.53