Finding the Fourth Proportional to 109,443.84, 164,200.32 and 47,143.68

Step by Step Solution

1. Step 1: Write the proportion equation
   109,443.84 : 164,200.32 = 47,143.68 : x
2. Step 2: Convert to fraction form
   109,443.84/164,200.32 = 47,143.68/x
3. Step 3: Cross multiply
   109,443.84x = 164,200.32 × 47,143.68
4. Step 4: Simplify right side
   109,443.84x = 7,741,007,341.98
5. Step 5: Solve for x
   x = 7,741,007,341.98/109,443.84
6. Step 6: Final answer
   x = 70,730.41