Finding the Fourth Proportional to 64,473.67, 89,063.37 and 61,320.82

Step by Step Solution

1. Step 1: Write the proportion equation
   64,473.67 : 89,063.37 = 61,320.82 : x
2. Step 2: Convert to fraction form
   64,473.67/89,063.37 = 61,320.82/x
3. Step 3: Cross multiply
   64,473.67x = 89,063.37 × 61,320.82
4. Step 4: Simplify right side
   64,473.67x = 5,461,439,247.65
5. Step 5: Solve for x
   x = 5,461,439,247.65/64,473.67
6. Step 6: Final answer
   x = 84,708.05