Finding the Fourth Proportional to 117,131.73, 161,641.59 and 63,416.75

Step by Step Solution

1. Step 1: Write the proportion equation
   117,131.73 : 161,641.59 = 63,416.75 : x
2. Step 2: Convert to fraction form
   117,131.73/161,641.59 = 63,416.75/x
3. Step 3: Cross multiply
   117,131.73x = 161,641.59 × 63,416.75
4. Step 4: Simplify right side
   117,131.73x = 10,250,784,302.63
5. Step 5: Solve for x
   x = 10,250,784,302.63/117,131.73
6. Step 6: Final answer
   x = 87,515.01