Finding the Fourth Proportional to 64,968.10, 89,655.98 and 35,160.10

Step by Step Solution

1. Step 1: Write the proportion equation
   64,968.10 : 89,655.98 = 35,160.10 : x
2. Step 2: Convert to fraction form
   64,968.10/89,655.98 = 35,160.10/x
3. Step 3: Cross multiply
   64,968.10x = 89,655.98 × 35,160.10
4. Step 4: Simplify right side
   64,968.10x = 3,152,312,822.46
5. Step 5: Solve for x
   x = 3,152,312,822.46/64,968.10
6. Step 6: Final answer
   x = 48,520.93