Finding the Fourth Proportional to 81,856.72, 122,783.64 and 32,608.72

Step by Step Solution

1. Step 1: Write the proportion equation
   81,856.72 : 122,783.64 = 32,608.72 : x
2. Step 2: Convert to fraction form
   81,856.72/122,783.64 = 32,608.72/x
3. Step 3: Cross multiply
   81,856.72x = 122,783.64 × 32,608.72
4. Step 4: Simplify right side
   81,856.72x = 4,003,817,337.34
5. Step 5: Solve for x
   x = 4,003,817,337.34/81,856.72
6. Step 6: Final answer
   x = 48,912.51