Finding the Fourth Proportional to 90,308.63, 135,550.42 and 43,594.31

Step by Step Solution

1. Step 1: Write the proportion equation
   90,308.63 : 135,550.42 = 43,594.31 : x
2. Step 2: Convert to fraction form
   90,308.63/135,550.42 = 43,594.31/x
3. Step 3: Cross multiply
   90,308.63x = 135,550.42 × 43,594.31
4. Step 4: Simplify right side
   90,308.63x = 5,909,226,800.22
5. Step 5: Solve for x
   x = 5,909,226,800.22/90,308.63
6. Step 6: Final answer
   x = 65,433.69