Finding the Fourth Proportional to 117,072.50, 161,560.44 and 63,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,072.50 : 161,560.44 = 63,357.50 : x
2. Step 2: Convert to fraction form
   117,072.50/161,560.44 = 63,357.50/x
3. Step 3: Cross multiply
   117,072.50x = 161,560.44 × 63,357.50
4. Step 4: Simplify right side
   117,072.50x = 10,236,064,769.50
5. Step 5: Solve for x
   x = 10,236,064,769.50/117,072.50
6. Step 6: Final answer
   x = 87,433.56