Finding the Fourth Proportional to 117,090.06, 161,584.71 and 63,375.78

Step by Step Solution

1. Step 1: Write the proportion equation
   117,090.06 : 161,584.71 = 63,375.78 : x
2. Step 2: Convert to fraction form
   117,090.06/161,584.71 = 63,375.78/x
3. Step 3: Cross multiply
   117,090.06x = 161,584.71 × 63,375.78
4. Step 4: Simplify right side
   117,090.06x = 10,240,557,032.32
5. Step 5: Solve for x
   x = 10,240,557,032.32/117,090.06
6. Step 6: Final answer
   x = 87,458.81