Finding the Fourth Proportional to 64,852.67, 89,510.60 and 40,964.15

Step by Step Solution

1. Step 1: Write the proportion equation
   64,852.67 : 89,510.60 = 40,964.15 : x
2. Step 2: Convert to fraction form
   64,852.67/89,510.60 = 40,964.15/x
3. Step 3: Cross multiply
   64,852.67x = 89,510.60 × 40,964.15
4. Step 4: Simplify right side
   64,852.67x = 3,666,725,440.17
5. Step 5: Solve for x
   x = 3,666,725,440.17/64,852.67
6. Step 6: Final answer
   x = 56,539.31