Finding the Fourth Proportional to 117,150.42, 161,667.36 and 63,435.60

Step by Step Solution

1. Step 1: Write the proportion equation
   117,150.42 : 161,667.36 = 63,435.60 : x
2. Step 2: Convert to fraction form
   117,150.42/161,667.36 = 63,435.60/x
3. Step 3: Cross multiply
   117,150.42x = 161,667.36 × 63,435.60
4. Step 4: Simplify right side
   117,150.42x = 10,255,465,982.02
5. Step 5: Solve for x
   x = 10,255,465,982.02/117,150.42
6. Step 6: Final answer
   x = 87,541.01