Finding the Fourth Proportional to 121,315, 167,419.88 and 67,600.08

Step by Step Solution

1. Step 1: Write the proportion equation
   121,315 : 167,419.88 = 67,600.08 : x
2. Step 2: Convert to fraction form
   121,315/167,419.88 = 67,600.08/x
3. Step 3: Cross multiply
   121,315x = 167,419.88 × 67,600.08
4. Step 4: Simplify right side
   121,315x = 11,317,597,281.59
5. Step 5: Solve for x
   x = 11,317,597,281.59/121,315
6. Step 6: Final answer
   x = 93,291.00