Finding the Fourth Proportional to 117,661.89, 162,313.61 and 76,849.93

Step by Step Solution

1. Step 1: Write the proportion equation
   117,661.89 : 162,313.61 = 76,849.93 : x
2. Step 2: Convert to fraction form
   117,661.89/162,313.61 = 76,849.93/x
3. Step 3: Cross multiply
   117,661.89x = 162,313.61 × 76,849.93
4. Step 4: Simplify right side
   117,661.89x = 12,473,789,566.55
5. Step 5: Solve for x
   x = 12,473,789,566.55/117,661.89
6. Step 6: Final answer
   x = 106,013.85