Finding the Fourth Proportional to 89,645.32, 134,384.44 and 30,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,645.32 : 134,384.44 = 30,440.50 : x
2. Step 2: Convert to fraction form
   89,645.32/134,384.44 = 30,440.50/x
3. Step 3: Cross multiply
   89,645.32x = 134,384.44 × 30,440.50
4. Step 4: Simplify right side
   89,645.32x = 4,090,729,545.82
5. Step 5: Solve for x
   x = 4,090,729,545.82/89,645.32
6. Step 6: Final answer
   x = 45,632.38