Finding the Fourth Proportional to 64,100.73, 88,435.47 and 40,218.69

Step by Step Solution

1. Step 1: Write the proportion equation
   64,100.73 : 88,435.47 = 40,218.69 : x
2. Step 2: Convert to fraction form
   64,100.73/88,435.47 = 40,218.69/x
3. Step 3: Cross multiply
   64,100.73x = 88,435.47 × 40,218.69
4. Step 4: Simplify right side
   64,100.73x = 3,556,758,752.93
5. Step 5: Solve for x
   x = 3,556,758,752.93/64,100.73
6. Step 6: Final answer
   x = 55,487.02