Finding the Fourth Proportional to 64,908, 89,573.31 and 35,100

Step by Step Solution

1. Step 1: Write the proportion equation
   64,908 : 89,573.31 = 35,100 : x
2. Step 2: Convert to fraction form
   64,908/89,573.31 = 35,100/x
3. Step 3: Cross multiply
   64,908x = 89,573.31 × 35,100
4. Step 4: Simplify right side
   64,908x = 3,144,023,181
5. Step 5: Solve for x
   x = 3,144,023,181/64,908
6. Step 6: Final answer
   x = 48,438.15