Finding the Fourth Proportional to 116,714.96, 161,133 and 77,086.16

Step by Step Solution

1. Step 1: Write the proportion equation
   116,714.96 : 161,133 = 77,086.16 : x
2. Step 2: Convert to fraction form
   116,714.96/161,133 = 77,086.16/x
3. Step 3: Cross multiply
   116,714.96x = 161,133 × 77,086.16
4. Step 4: Simplify right side
   116,714.96x = 12,421,124,219.28
5. Step 5: Solve for x
   x = 12,421,124,219.28/116,714.96
6. Step 6: Final answer
   x = 106,422.73