Finding the Fourth Proportional to 128,362.41, 177,081.18 and 83,055.16

Step by Step Solution

1. Step 1: Write the proportion equation
   128,362.41 : 177,081.18 = 83,055.16 : x
2. Step 2: Convert to fraction form
   128,362.41/177,081.18 = 83,055.16/x
3. Step 3: Cross multiply
   128,362.41x = 177,081.18 × 83,055.16
4. Step 4: Simplify right side
   128,362.41x = 14,707,505,737.89
5. Step 5: Solve for x
   x = 14,707,505,737.89/128,362.41
6. Step 6: Final answer
   x = 114,577.98