Finding the Fourth Proportional to 117,091, 161,541.48 and 76,826.98

Step by Step Solution

1. Step 1: Write the proportion equation
   117,091 : 161,541.48 = 76,826.98 : x
2. Step 2: Convert to fraction form
   117,091/161,541.48 = 76,826.98/x
3. Step 3: Cross multiply
   117,091x = 161,541.48 × 76,826.98
4. Step 4: Simplify right side
   117,091x = 12,410,744,053.13
5. Step 5: Solve for x
   x = 12,410,744,053.13/117,091
6. Step 6: Final answer
   x = 105,992.30