Finding the Fourth Proportional to 111,899.52, 154,411.92 and 64,141.92

Step by Step Solution

1. Step 1: Write the proportion equation
   111,899.52 : 154,411.92 = 64,141.92 : x
2. Step 2: Convert to fraction form
   111,899.52/154,411.92 = 64,141.92/x
3. Step 3: Cross multiply
   111,899.52x = 154,411.92 × 64,141.92
4. Step 4: Simplify right side
   111,899.52x = 9,904,277,019.69
5. Step 5: Solve for x
   x = 9,904,277,019.69/111,899.52
6. Step 6: Final answer
   x = 88,510.45