Finding the Fourth Proportional to 117,342.63, 161,942.04 and 99,092.79

Step by Step Solution

1. Step 1: Write the proportion equation
   117,342.63 : 161,942.04 = 99,092.79 : x
2. Step 2: Convert to fraction form
   117,342.63/161,942.04 = 99,092.79/x
3. Step 3: Cross multiply
   117,342.63x = 161,942.04 × 99,092.79
4. Step 4: Simplify right side
   117,342.63x = 16,047,288,561.89
5. Step 5: Solve for x
   x = 16,047,288,561.89/117,342.63
6. Step 6: Final answer
   x = 136,755.83