Finding the Fourth Proportional to 121,645, 167,866.84 and 67,928.52

Step by Step Solution

1. Step 1: Write the proportion equation
   121,645 : 167,866.84 = 67,928.52 : x
2. Step 2: Convert to fraction form
   121,645/167,866.84 = 67,928.52/x
3. Step 3: Cross multiply
   121,645x = 167,866.84 × 67,928.52
4. Step 4: Simplify right side
   121,645x = 11,402,945,998.28
5. Step 5: Solve for x
   x = 11,402,945,998.28/121,645
6. Step 6: Final answer
   x = 93,739.54