Finding the Fourth Proportional to 141,553.89, 195,409.49 and 87,870.51

Step by Step Solution

1. Step 1: Write the proportion equation
   141,553.89 : 195,409.49 = 87,870.51 : x
2. Step 2: Convert to fraction form
   141,553.89/195,409.49 = 87,870.51/x
3. Step 3: Cross multiply
   141,553.89x = 195,409.49 × 87,870.51
4. Step 4: Simplify right side
   141,553.89x = 17,170,731,105.79
5. Step 5: Solve for x
   x = 17,170,731,105.79/141,553.89
6. Step 6: Final answer
   x = 121,301.73