Finding the Fourth Proportional to 31,667.60, 43,701.72 and 19,735.76

Step by Step Solution

1. Step 1: Write the proportion equation
   31,667.60 : 43,701.72 = 19,735.76 : x
2. Step 2: Convert to fraction form
   31,667.60/43,701.72 = 19,735.76/x
3. Step 3: Cross multiply
   31,667.60x = 43,701.72 × 19,735.76
4. Step 4: Simplify right side
   31,667.60x = 862,486,657.51
5. Step 5: Solve for x
   x = 862,486,657.51/31,667.60
6. Step 6: Final answer
   x = 27,235.62