Finding the Fourth Proportional to 65,245.82, 90,018.18 and 38,394.93

Step by Step Solution

1. Step 1: Write the proportion equation
   65,245.82 : 90,018.18 = 38,394.93 : x
2. Step 2: Convert to fraction form
   65,245.82/90,018.18 = 38,394.93/x
3. Step 3: Cross multiply
   65,245.82x = 90,018.18 × 38,394.93
4. Step 4: Simplify right side
   65,245.82x = 3,456,241,719.83
5. Step 5: Solve for x
   x = 3,456,241,719.83/65,245.82
6. Step 6: Final answer
   x = 52,972.62