Finding the Fourth Proportional to 65,128.34, 89,876.76 and 36,448.04

Step by Step Solution

1. Step 1: Write the proportion equation
   65,128.34 : 89,876.76 = 36,448.04 : x
2. Step 2: Convert to fraction form
   65,128.34/89,876.76 = 36,448.04/x
3. Step 3: Cross multiply
   65,128.34x = 89,876.76 × 36,448.04
4. Step 4: Simplify right side
   65,128.34x = 3,275,831,743.55
5. Step 5: Solve for x
   x = 3,275,831,743.55/65,128.34
6. Step 6: Final answer
   x = 50,298.10