Finding the Fourth Proportional to 118,002.61, 162,842.70 and 64,287.46

Step by Step Solution

1. Step 1: Write the proportion equation
   118,002.61 : 162,842.70 = 64,287.46 : x
2. Step 2: Convert to fraction form
   118,002.61/162,842.70 = 64,287.46/x
3. Step 3: Cross multiply
   118,002.61x = 162,842.70 × 64,287.46
4. Step 4: Simplify right side
   118,002.61x = 10,468,743,562.54
5. Step 5: Solve for x
   x = 10,468,743,562.54/118,002.61
6. Step 6: Final answer
   x = 88,716.20