Finding the Fourth Proportional to 117,059.32, 161,558.78 and 76,833.10

Step by Step Solution

1. Step 1: Write the proportion equation
   117,059.32 : 161,558.78 = 76,833.10 : x
2. Step 2: Convert to fraction form
   117,059.32/161,558.78 = 76,833.10/x
3. Step 3: Cross multiply
   117,059.32x = 161,558.78 × 76,833.10
4. Step 4: Simplify right side
   117,059.32x = 12,413,061,899.62
5. Step 5: Solve for x
   x = 12,413,061,899.62/117,059.32
6. Step 6: Final answer
   x = 106,040.78