Finding the Fourth Proportional to 112,898.06, 155,763.87 and 65,145.14

Step by Step Solution

1. Step 1: Write the proportion equation
   112,898.06 : 155,763.87 = 65,145.14 : x
2. Step 2: Convert to fraction form
   112,898.06/155,763.87 = 65,145.14/x
3. Step 3: Cross multiply
   112,898.06x = 155,763.87 × 65,145.14
4. Step 4: Simplify right side
   112,898.06x = 10,147,259,118.09
5. Step 5: Solve for x
   x = 10,147,259,118.09/112,898.06
6. Step 6: Final answer
   x = 89,879.84