Finding the Fourth Proportional to 107,641.72, 161,498.90 and 47,662.01

Step by Step Solution

1. Step 1: Write the proportion equation
   107,641.72 : 161,498.90 = 47,662.01 : x
2. Step 2: Convert to fraction form
   107,641.72/161,498.90 = 47,662.01/x
3. Step 3: Cross multiply
   107,641.72x = 161,498.90 × 47,662.01
4. Step 4: Simplify right side
   107,641.72x = 7,697,361,319.72
5. Step 5: Solve for x
   x = 7,697,361,319.72/107,641.72
6. Step 6: Final answer
   x = 71,509.09