Finding the Fourth Proportional to 117,148.50, 161,664.68 and 63,433.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,148.50 : 161,664.68 = 63,433.50 : x
2. Step 2: Convert to fraction form
   117,148.50/161,664.68 = 63,433.50/x
3. Step 3: Cross multiply
   117,148.50x = 161,664.68 × 63,433.50
4. Step 4: Simplify right side
   117,148.50x = 10,254,956,478.78
5. Step 5: Solve for x
   x = 10,254,956,478.78/117,148.50
6. Step 6: Final answer
   x = 87,538.09