Finding the Fourth Proportional to 111,910.61, 154,451.41 and 64,154.73

Step by Step Solution

1. Step 1: Write the proportion equation
   111,910.61 : 154,451.41 = 64,154.73 : x
2. Step 2: Convert to fraction form
   111,910.61/154,451.41 = 64,154.73/x
3. Step 3: Cross multiply
   111,910.61x = 154,451.41 × 64,154.73
4. Step 4: Simplify right side
   111,910.61x = 9,908,788,925.48
5. Step 5: Solve for x
   x = 9,908,788,925.48/111,910.61
6. Step 6: Final answer
   x = 88,542.00