Finding the Fourth Proportional to 114,895, 158,545.38 and 64,590.76

Step by Step Solution

1. Step 1: Write the proportion equation
   114,895 : 158,545.38 = 64,590.76 : x
2. Step 2: Convert to fraction form
   114,895/158,545.38 = 64,590.76/x
3. Step 3: Cross multiply
   114,895x = 158,545.38 × 64,590.76
4. Step 4: Simplify right side
   114,895x = 10,240,566,588.69
5. Step 5: Solve for x
   x = 10,240,566,588.69/114,895
6. Step 6: Final answer
   x = 89,129.78