Finding the Fourth Proportional to 65,498.07, 90,383.40 and 38,649

Step by Step Solution

1. Step 1: Write the proportion equation
   65,498.07 : 90,383.40 = 38,649 : x
2. Step 2: Convert to fraction form
   65,498.07/90,383.40 = 38,649/x
3. Step 3: Cross multiply
   65,498.07x = 90,383.40 × 38,649
4. Step 4: Simplify right side
   65,498.07x = 3,493,228,026.60
5. Step 5: Solve for x
   x = 3,493,228,026.60/65,498.07
6. Step 6: Final answer
   x = 53,333.30