Finding the Fourth Proportional to 190,868.27, 286,300.58 and 116,009.09

Step by Step Solution

1. Step 1: Write the proportion equation
   190,868.27 : 286,300.58 = 116,009.09 : x
2. Step 2: Convert to fraction form
   190,868.27/286,300.58 = 116,009.09/x
3. Step 3: Cross multiply
   190,868.27x = 286,300.58 × 116,009.09
4. Step 4: Simplify right side
   190,868.27x = 33,213,467,740.72
5. Step 5: Solve for x
   x = 33,213,467,740.72/190,868.27
6. Step 6: Final answer
   x = 174,012.52