Finding the Fourth Proportional to 112,842.09, 155,827.42 and 72,625.89

Step by Step Solution

1. Step 1: Write the proportion equation
   112,842.09 : 155,827.42 = 72,625.89 : x
2. Step 2: Convert to fraction form
   112,842.09/155,827.42 = 72,625.89/x
3. Step 3: Cross multiply
   112,842.09x = 155,827.42 × 72,625.89
4. Step 4: Simplify right side
   112,842.09x = 11,317,105,063.90
5. Step 5: Solve for x
   x = 11,317,105,063.90/112,842.09
6. Step 6: Final answer
   x = 100,291.52