Finding the Fourth Proportional to 65,454.63, 90,327.20 and 38,236.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,454.63 : 90,327.20 = 38,236.05 : x
2. Step 2: Convert to fraction form
   65,454.63/90,327.20 = 38,236.05/x
3. Step 3: Cross multiply
   65,454.63x = 90,327.20 × 38,236.05
4. Step 4: Simplify right side
   65,454.63x = 3,453,755,359.46
5. Step 5: Solve for x
   x = 3,453,755,359.46/65,454.63
6. Step 6: Final answer
   x = 52,765.64