Finding the Fourth Proportional to 191,036.91, 286,456.33 and 101,128.35

Step by Step Solution

1. Step 1: Write the proportion equation
   191,036.91 : 286,456.33 = 101,128.35 : x
2. Step 2: Convert to fraction form
   191,036.91/286,456.33 = 101,128.35/x
3. Step 3: Cross multiply
   191,036.91x = 286,456.33 × 101,128.35
4. Step 4: Simplify right side
   191,036.91x = 28,968,855,494.31
5. Step 5: Solve for x
   x = 28,968,855,494.31/191,036.91
6. Step 6: Final answer
   x = 151,640.10