Finding the Fourth Proportional to 118,111.03, 162,988.53 and 69,728.54

Step by Step Solution

1. Step 1: Write the proportion equation
   118,111.03 : 162,988.53 = 69,728.54 : x
2. Step 2: Convert to fraction form
   118,111.03/162,988.53 = 69,728.54/x
3. Step 3: Cross multiply
   118,111.03x = 162,988.53 × 69,728.54
4. Step 4: Simplify right side
   118,111.03x = 11,364,952,728.55
5. Step 5: Solve for x
   x = 11,364,952,728.55/118,111.03
6. Step 6: Final answer
   x = 96,222.62