Finding the Fourth Proportional to 114,987.30, 158,682.24 and 64,686.30

Step by Step Solution

1. Step 1: Write the proportion equation
   114,987.30 : 158,682.24 = 64,686.30 : x
2. Step 2: Convert to fraction form
   114,987.30/158,682.24 = 64,686.30/x
3. Step 3: Cross multiply
   114,987.30x = 158,682.24 × 64,686.30
4. Step 4: Simplify right side
   114,987.30x = 10,264,566,981.31
5. Step 5: Solve for x
   x = 10,264,566,981.31/114,987.30
6. Step 6: Final answer
   x = 89,266.96