Finding the Fourth Proportional to 114,876.48, 158,536.80 and 64,578.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114,876.48 : 158,536.80 = 64,578.72 : x
2. Step 2: Convert to fraction form
   114,876.48/158,536.80 = 64,578.72/x
3. Step 3: Cross multiply
   114,876.48x = 158,536.80 × 64,578.72
4. Step 4: Simplify right side
   114,876.48x = 10,238,103,616.90
5. Step 5: Solve for x
   x = 10,238,103,616.90/114,876.48
6. Step 6: Final answer
   x = 89,122.71