Finding the Fourth Proportional to 64,968.50, 89,656.58 and 35,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,968.50 : 89,656.58 = 35,160.50 : x
2. Step 2: Convert to fraction form
   64,968.50/89,656.58 = 35,160.50/x
3. Step 3: Cross multiply
   64,968.50x = 89,656.58 × 35,160.50
4. Step 4: Simplify right side
   64,968.50x = 3,152,370,181.09
5. Step 5: Solve for x
   x = 3,152,370,181.09/64,968.50
6. Step 6: Final answer
   x = 48,521.52