Finding the Fourth Proportional to 258,681.79, 387,555.72 and 108,653.59

Step by Step Solution

1. Step 1: Write the proportion equation
   258,681.79 : 387,555.72 = 108,653.59 : x
2. Step 2: Convert to fraction form
   258,681.79/387,555.72 = 108,653.59/x
3. Step 3: Cross multiply
   258,681.79x = 387,555.72 × 108,653.59
4. Step 4: Simplify right side
   258,681.79x = 42,109,320,303.03
5. Step 5: Solve for x
   x = 42,109,320,303.03/258,681.79
6. Step 6: Final answer
   x = 162,784.25