Finding the Fourth Proportional to 91,221.72, 136,776.68 and 32,064.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,221.72 : 136,776.68 = 32,064.18 : x
2. Step 2: Convert to fraction form
   91,221.72/136,776.68 = 32,064.18/x
3. Step 3: Cross multiply
   91,221.72x = 136,776.68 × 32,064.18
4. Step 4: Simplify right side
   91,221.72x = 4,385,632,087.32
5. Step 5: Solve for x
   x = 4,385,632,087.32/91,221.72
6. Step 6: Final answer
   x = 48,076.62