Finding the Fourth Proportional to 116,982, 161,378.01 and 76,678.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,982 : 161,378.01 = 76,678.02 : x
2. Step 2: Convert to fraction form
   116,982/161,378.01 = 76,678.02/x
3. Step 3: Cross multiply
   116,982x = 161,378.01 × 76,678.02
4. Step 4: Simplify right side
   116,982x = 12,374,146,278.34
5. Step 5: Solve for x
   x = 12,374,146,278.34/116,982
6. Step 6: Final answer
   x = 105,778.21