Finding the Fourth Proportional to 117,105.84, 161,606.48 and 63,391.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,105.84 : 161,606.48 = 63,391.50 : x
2. Step 2: Convert to fraction form
   117,105.84/161,606.48 = 63,391.50/x
3. Step 3: Cross multiply
   117,105.84x = 161,606.48 × 63,391.50
4. Step 4: Simplify right side
   117,105.84x = 10,244,476,859.96
5. Step 5: Solve for x
   x = 10,244,476,859.96/117,105.84
6. Step 6: Final answer
   x = 87,480.50