Finding the Fourth Proportional to 116,515.19, 174,651.59 and 79,078.31

Step by Step Solution

1. Step 1: Write the proportion equation
   116,515.19 : 174,651.59 = 79,078.31 : x
2. Step 2: Convert to fraction form
   116,515.19/174,651.59 = 79,078.31/x
3. Step 3: Cross multiply
   116,515.19x = 174,651.59 × 79,078.31
4. Step 4: Simplify right side
   116,515.19x = 13,811,152,555.39
5. Step 5: Solve for x
   x = 13,811,152,555.39/116,515.19
6. Step 6: Final answer
   x = 118,535.21