Finding the Fourth Proportional to 89,109.72, 133,664.76 and 36,509.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,109.72 : 133,664.76 = 36,509.76 : x
2. Step 2: Convert to fraction form
   89,109.72/133,664.76 = 36,509.76/x
3. Step 3: Cross multiply
   89,109.72x = 133,664.76 × 36,509.76
4. Step 4: Simplify right side
   89,109.72x = 4,880,068,308.06
5. Step 5: Solve for x
   x = 4,880,068,308.06/89,109.72
6. Step 6: Final answer
   x = 54,764.71