Finding the Fourth Proportional to 117,105.84, 161,606.01 and 63,391.32

Step by Step Solution

1. Step 1: Write the proportion equation
   117,105.84 : 161,606.01 = 63,391.32 : x
2. Step 2: Convert to fraction form
   117,105.84/161,606.01 = 63,391.32/x
3. Step 3: Cross multiply
   117,105.84x = 161,606.01 × 63,391.32
4. Step 4: Simplify right side
   117,105.84x = 10,244,418,293.83
5. Step 5: Solve for x
   x = 10,244,418,293.83/117,105.84
6. Step 6: Final answer
   x = 87,479.99