Finding the Fourth Proportional to 119,411.76, 164,786.04 and 81,684.72

Step by Step Solution

1. Step 1: Write the proportion equation
   119,411.76 : 164,786.04 = 81,684.72 : x
2. Step 2: Convert to fraction form
   119,411.76/164,786.04 = 81,684.72/x
3. Step 3: Cross multiply
   119,411.76x = 164,786.04 × 81,684.72
4. Step 4: Simplify right side
   119,411.76x = 13,460,501,537.31
5. Step 5: Solve for x
   x = 13,460,501,537.31/119,411.76
6. Step 6: Final answer
   x = 112,723.42