Finding the Fourth Proportional to 32,607.48, 45,035.28 and 21,978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   32,607.48 : 45,035.28 = 21,978.84 : x
2. Step 2: Convert to fraction form
   32,607.48/45,035.28 = 21,978.84/x
3. Step 3: Cross multiply
   32,607.48x = 45,035.28 × 21,978.84
4. Step 4: Simplify right side
   32,607.48x = 989,823,213.48
5. Step 5: Solve for x
   x = 989,823,213.48/32,607.48
6. Step 6: Final answer
   x = 30,355.71