Finding the Fourth Proportional to 143,522.88, 198,061.57 and 79,864.77

Step by Step Solution

1. Step 1: Write the proportion equation
   143,522.88 : 198,061.57 = 79,864.77 : x
2. Step 2: Convert to fraction form
   143,522.88/198,061.57 = 79,864.77/x
3. Step 3: Cross multiply
   143,522.88x = 198,061.57 × 79,864.77
4. Step 4: Simplify right side
   143,522.88x = 15,818,141,733.89
5. Step 5: Solve for x
   x = 15,818,141,733.89/143,522.88
6. Step 6: Final answer
   x = 110,213.38