Finding the Fourth Proportional to 65,210.98, 89,991.53 and 38,354.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,210.98 : 89,991.53 = 38,354.62 : x
2. Step 2: Convert to fraction form
   65,210.98/89,991.53 = 38,354.62/x
3. Step 3: Cross multiply
   65,210.98x = 89,991.53 × 38,354.62
4. Step 4: Simplify right side
   65,210.98x = 3,451,590,936.37
5. Step 5: Solve for x
   x = 3,451,590,936.37/65,210.98
6. Step 6: Final answer
   x = 52,929.60