Finding the Fourth Proportional to 117,160.73, 161,642.12 and 76,870.73

Step by Step Solution

1. Step 1: Write the proportion equation
   117,160.73 : 161,642.12 = 76,870.73 : x
2. Step 2: Convert to fraction form
   117,160.73/161,642.12 = 76,870.73/x
3. Step 3: Cross multiply
   117,160.73x = 161,642.12 × 76,870.73
4. Step 4: Simplify right side
   117,160.73x = 12,425,546,570.58
5. Step 5: Solve for x
   x = 12,425,546,570.58/117,160.73
6. Step 6: Final answer
   x = 106,055.56