Finding the Fourth Proportional to 139,288.43, 192,218.06 and 75,626.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,288.43 : 192,218.06 = 75,626.25 : x
2. Step 2: Convert to fraction form
   139,288.43/192,218.06 = 75,626.25/x
3. Step 3: Cross multiply
   139,288.43x = 192,218.06 × 75,626.25
4. Step 4: Simplify right side
   139,288.43x = 14,536,730,528.32
5. Step 5: Solve for x
   x = 14,536,730,528.32/139,288.43
6. Step 6: Final answer
   x = 104,364.23