Finding the Fourth Proportional to 118,980.89, 178,629.72 and 69,096.79

Step by Step Solution

1. Step 1: Write the proportion equation
   118,980.89 : 178,629.72 = 69,096.79 : x
2. Step 2: Convert to fraction form
   118,980.89/178,629.72 = 69,096.79/x
3. Step 3: Cross multiply
   118,980.89x = 178,629.72 × 69,096.79
4. Step 4: Simplify right side
   118,980.89x = 12,342,739,011.97
5. Step 5: Solve for x
   x = 12,342,739,011.97/118,980.89
6. Step 6: Final answer
   x = 103,737.16