Finding the Fourth Proportional to 64,818, 89,448.90 and 35,010

Step by Step Solution

1. Step 1: Write the proportion equation
   64,818 : 89,448.90 = 35,010 : x
2. Step 2: Convert to fraction form
   64,818/89,448.90 = 35,010/x
3. Step 3: Cross multiply
   64,818x = 89,448.90 × 35,010
4. Step 4: Simplify right side
   64,818x = 3,131,605,989
5. Step 5: Solve for x
   x = 3,131,605,989/64,818
6. Step 6: Final answer
   x = 48,313.83