Finding the Fourth Proportional to 106,457.79, 159,659.43 and 31,560.42

Step by Step Solution

1. Step 1: Write the proportion equation
   106,457.79 : 159,659.43 = 31,560.42 : x
2. Step 2: Convert to fraction form
   106,457.79/159,659.43 = 31,560.42/x
3. Step 3: Cross multiply
   106,457.79x = 159,659.43 × 31,560.42
4. Step 4: Simplify right side
   106,457.79x = 5,038,918,667.76
5. Step 5: Solve for x
   x = 5,038,918,667.76/106,457.79
6. Step 6: Final answer
   x = 47,332.55