Finding the Fourth Proportional to 139,281, 192,210.04 and 78,850.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,281 : 192,210.04 = 78,850.08 : x
2. Step 2: Convert to fraction form
   139,281/192,210.04 = 78,850.08/x
3. Step 3: Cross multiply
   139,281x = 192,210.04 × 78,850.08
4. Step 4: Simplify right side
   139,281x = 15,155,777,030.80
5. Step 5: Solve for x
   x = 15,155,777,030.80/139,281
6. Step 6: Final answer
   x = 108,814.39