Finding the Fourth Proportional to 107,215.04, 147,935.22 and 64,775.72

Step by Step Solution

1. Step 1: Write the proportion equation
   107,215.04 : 147,935.22 = 64,775.72 : x
2. Step 2: Convert to fraction form
   107,215.04/147,935.22 = 64,775.72/x
3. Step 3: Cross multiply
   107,215.04x = 147,935.22 × 64,775.72
4. Step 4: Simplify right side
   107,215.04x = 9,582,610,388.86
5. Step 5: Solve for x
   x = 9,582,610,388.86/107,215.04
6. Step 6: Final answer
   x = 89,377.48