Finding the Fourth Proportional to 116,983, 161,379.39 and 76,679.02

Step by Step Solution

1. Step 1: Write the proportion equation
   116,983 : 161,379.39 = 76,679.02 : x
2. Step 2: Convert to fraction form
   116,983/161,379.39 = 76,679.02/x
3. Step 3: Cross multiply
   116,983x = 161,379.39 × 76,679.02
4. Step 4: Simplify right side
   116,983x = 12,374,413,473.40
5. Step 5: Solve for x
   x = 12,374,413,473.40/116,983
6. Step 6: Final answer
   x = 105,779.59