Finding the Fourth Proportional to 185,870.80, 278,879.10 and 67,554.10

Step by Step Solution

1. Step 1: Write the proportion equation
   185,870.80 : 278,879.10 = 67,554.10 : x
2. Step 2: Convert to fraction form
   185,870.80/278,879.10 = 67,554.10/x
3. Step 3: Cross multiply
   185,870.80x = 278,879.10 × 67,554.10
4. Step 4: Simplify right side
   185,870.80x = 18,839,426,609.31
5. Step 5: Solve for x
   x = 18,839,426,609.31/185,870.80
6. Step 6: Final answer
   x = 101,357.65