Finding the Fourth Proportional to 173,061.40, 259,446.30 and 89,955.40

Step by Step Solution

1. Step 1: Write the proportion equation
   173,061.40 : 259,446.30 = 89,955.40 : x
2. Step 2: Convert to fraction form
   173,061.40/259,446.30 = 89,955.40/x
3. Step 3: Cross multiply
   173,061.40x = 259,446.30 × 89,955.40
4. Step 4: Simplify right side
   173,061.40x = 23,338,595,695.02
5. Step 5: Solve for x
   x = 23,338,595,695.02/173,061.40
6. Step 6: Final answer
   x = 134,857.31