Finding the Fourth Proportional to 116,910.72, 175,314.24 and 81,866.88

Step by Step Solution

1. Step 1: Write the proportion equation
   116,910.72 : 175,314.24 = 81,866.88 : x
2. Step 2: Convert to fraction form
   116,910.72/175,314.24 = 81,866.88/x
3. Step 3: Cross multiply
   116,910.72x = 175,314.24 × 81,866.88
4. Step 4: Simplify right side
   116,910.72x = 14,352,429,848.37
5. Step 5: Solve for x
   x = 14,352,429,848.37/116,910.72
6. Step 6: Final answer
   x = 122,764.02