Finding the Fourth Proportional to 64,250.91, 96,390.72 and 30,998.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,250.91 : 96,390.72 = 30,998.88 : x
2. Step 2: Convert to fraction form
   64,250.91/96,390.72 = 30,998.88/x
3. Step 3: Cross multiply
   64,250.91x = 96,390.72 × 30,998.88
4. Step 4: Simplify right side
   64,250.91x = 2,988,004,362.39
5. Step 5: Solve for x
   x = 2,988,004,362.39/64,250.91
6. Step 6: Final answer
   x = 46,505.25