Finding the Fourth Proportional to 65,109.30, 89,859.12 and 36,430.58

Step by Step Solution

1. Step 1: Write the proportion equation
   65,109.30 : 89,859.12 = 36,430.58 : x
2. Step 2: Convert to fraction form
   65,109.30/89,859.12 = 36,430.58/x
3. Step 3: Cross multiply
   65,109.30x = 89,859.12 × 36,430.58
4. Step 4: Simplify right side
   65,109.30x = 3,273,619,859.89
5. Step 5: Solve for x
   x = 3,273,619,859.89/65,109.30
6. Step 6: Final answer
   x = 50,278.84