Finding the Fourth Proportional to 73,171.64, 109,678.71 and 47,861.61

Step by Step Solution

1. Step 1: Write the proportion equation
   73,171.64 : 109,678.71 = 47,861.61 : x
2. Step 2: Convert to fraction form
   73,171.64/109,678.71 = 47,861.61/x
3. Step 3: Cross multiply
   73,171.64x = 109,678.71 × 47,861.61
4. Step 4: Simplify right side
   73,171.64x = 5,249,399,643.32
5. Step 5: Solve for x
   x = 5,249,399,643.32/73,171.64
6. Step 6: Final answer
   x = 71,740.91