Finding the Fourth Proportional to 118,050.89, 177,124.73 and 86,621.27

Step by Step Solution

1. Step 1: Write the proportion equation
   118,050.89 : 177,124.73 = 86,621.27 : x
2. Step 2: Convert to fraction form
   118,050.89/177,124.73 = 86,621.27/x
3. Step 3: Cross multiply
   118,050.89x = 177,124.73 × 86,621.27
4. Step 4: Simplify right side
   118,050.89x = 15,342,767,742.28
5. Step 5: Solve for x
   x = 15,342,767,742.28/118,050.89
6. Step 6: Final answer
   x = 129,967.41