Finding the Fourth Proportional to 78,826.05, 118,191.42 and 31,448.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,826.05 : 118,191.42 = 31,448.34 : x
2. Step 2: Convert to fraction form
   78,826.05/118,191.42 = 31,448.34/x
3. Step 3: Cross multiply
   78,826.05x = 118,191.42 × 31,448.34
4. Step 4: Simplify right side
   78,826.05x = 3,716,923,961.24
5. Step 5: Solve for x
   x = 3,716,923,961.24/78,826.05
6. Step 6: Final answer
   x = 47,153.50