Finding the Fourth Proportional to 139,329.32, 192,274.49 and 75,667.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,329.32 : 192,274.49 = 75,667.10 : x
2. Step 2: Convert to fraction form
   139,329.32/192,274.49 = 75,667.10/x
3. Step 3: Cross multiply
   139,329.32x = 192,274.49 × 75,667.10
4. Step 4: Simplify right side
   139,329.32x = 14,548,852,290.07
5. Step 5: Solve for x
   x = 14,548,852,290.07/139,329.32
6. Step 6: Final answer
   x = 104,420.61