Finding the Fourth Proportional to 115,862, 159,889.56 and 62,870

Step by Step Solution

1. Step 1: Write the proportion equation
   115,862 : 159,889.56 = 62,870 : x
2. Step 2: Convert to fraction form
   115,862/159,889.56 = 62,870/x
3. Step 3: Cross multiply
   115,862x = 159,889.56 × 62,870
4. Step 4: Simplify right side
   115,862x = 10,052,256,637.20
5. Step 5: Solve for x
   x = 10,052,256,637.20/115,862
6. Step 6: Final answer
   x = 86,760.60