Finding the Fourth Proportional to 92,909.98, 128,142.83 and 82,166.34

Step by Step Solution

1. Step 1: Write the proportion equation
   92,909.98 : 128,142.83 = 82,166.34 : x
2. Step 2: Convert to fraction form
   92,909.98/128,142.83 = 82,166.34/x
3. Step 3: Cross multiply
   92,909.98x = 128,142.83 × 82,166.34
4. Step 4: Simplify right side
   92,909.98x = 10,529,027,543.76
5. Step 5: Solve for x
   x = 10,529,027,543.76/92,909.98
6. Step 6: Final answer
   x = 113,325.05