Finding the Fourth Proportional to 90,810.34, 136,215.27 and 43,281.37

Step by Step Solution

1. Step 1: Write the proportion equation
   90,810.34 : 136,215.27 = 43,281.37 : x
2. Step 2: Convert to fraction form
   90,810.34/136,215.27 = 43,281.37/x
3. Step 3: Cross multiply
   90,810.34x = 136,215.27 × 43,281.37
4. Step 4: Simplify right side
   90,810.34x = 5,895,583,500.52
5. Step 5: Solve for x
   x = 5,895,583,500.52/90,810.34
6. Step 6: Final answer
   x = 64,921.94