Finding the Fourth Proportional to 159,363.72, 219,931.02 and 87,759

Step by Step Solution

1. Step 1: Write the proportion equation
   159,363.72 : 219,931.02 = 87,759 : x
2. Step 2: Convert to fraction form
   159,363.72/219,931.02 = 87,759/x
3. Step 3: Cross multiply
   159,363.72x = 219,931.02 × 87,759
4. Step 4: Simplify right side
   159,363.72x = 19,300,926,384.18
5. Step 5: Solve for x
   x = 19,300,926,384.18/159,363.72
6. Step 6: Final answer
   x = 121,112.42