Finding the Fourth Proportional to 286,111.86, 394,826.85 and 158,784.18

Step by Step Solution

1. Step 1: Write the proportion equation
   286,111.86 : 394,826.85 = 158,784.18 : x
2. Step 2: Convert to fraction form
   286,111.86/394,826.85 = 158,784.18/x
3. Step 3: Cross multiply
   286,111.86x = 394,826.85 × 158,784.18
4. Step 4: Simplify right side
   286,111.86x = 62,692,257,619.23
5. Step 5: Solve for x
   x = 62,692,257,619.23/286,111.86
6. Step 6: Final answer
   x = 219,118.00