Finding the Fourth Proportional to 108,128.93, 162,193.32 and 78,733.76

Step by Step Solution

1. Step 1: Write the proportion equation
   108,128.93 : 162,193.32 = 78,733.76 : x
2. Step 2: Convert to fraction form
   108,128.93/162,193.32 = 78,733.76/x
3. Step 3: Cross multiply
   108,128.93x = 162,193.32 × 78,733.76
4. Step 4: Simplify right side
   108,128.93x = 12,770,089,119.52
5. Step 5: Solve for x
   x = 12,770,089,119.52/108,128.93
6. Step 6: Final answer
   x = 118,100.58