Finding the Fourth Proportional to 119,289.74, 164,619.33 and 64,842.41

Step by Step Solution

1. Step 1: Write the proportion equation
   119,289.74 : 164,619.33 = 64,842.41 : x
2. Step 2: Convert to fraction form
   119,289.74/164,619.33 = 64,842.41/x
3. Step 3: Cross multiply
   119,289.74x = 164,619.33 × 64,842.41
4. Step 4: Simplify right side
   119,289.74x = 10,674,315,071.86
5. Step 5: Solve for x
   x = 10,674,315,071.86/119,289.74
6. Step 6: Final answer
   x = 89,482.25