Finding the Fourth Proportional to 35,388.86, 48,852.89 and 21,968.01

Step by Step Solution

1. Step 1: Write the proportion equation
   35,388.86 : 48,852.89 = 21,968.01 : x
2. Step 2: Convert to fraction form
   35,388.86/48,852.89 = 21,968.01/x
3. Step 3: Cross multiply
   35,388.86x = 48,852.89 × 21,968.01
4. Step 4: Simplify right side
   35,388.86x = 1,073,200,666.21
5. Step 5: Solve for x
   x = 1,073,200,666.21/35,388.86
6. Step 6: Final answer
   x = 30,325.95