Finding the Fourth Proportional to 117,131.56, 161,641.62 and 63,416.59

Step by Step Solution

1. Step 1: Write the proportion equation
   117,131.56 : 161,641.62 = 63,416.59 : x
2. Step 2: Convert to fraction form
   117,131.56/161,641.62 = 63,416.59/x
3. Step 3: Cross multiply
   117,131.56x = 161,641.62 × 63,416.59
4. Step 4: Simplify right side
   117,131.56x = 10,250,760,342.48
5. Step 5: Solve for x
   x = 10,250,760,342.48/117,131.56
6. Step 6: Final answer
   x = 87,514.93