Finding the Fourth Proportional to 108,131.82, 149,009.28 and 82,666.93

Step by Step Solution

1. Step 1: Write the proportion equation
   108,131.82 : 149,009.28 = 82,666.93 : x
2. Step 2: Convert to fraction form
   108,131.82/149,009.28 = 82,666.93/x
3. Step 3: Cross multiply
   108,131.82x = 149,009.28 × 82,666.93
4. Step 4: Simplify right side
   108,131.82x = 12,318,139,719.11
5. Step 5: Solve for x
   x = 12,318,139,719.11/108,131.82
6. Step 6: Final answer
   x = 113,917.81