Finding the Fourth Proportional to 112,973.14, 155,886.72 and 67,640.26

Step by Step Solution

1. Step 1: Write the proportion equation
   112,973.14 : 155,886.72 = 67,640.26 : x
2. Step 2: Convert to fraction form
   112,973.14/155,886.72 = 67,640.26/x
3. Step 3: Cross multiply
   112,973.14x = 155,886.72 × 67,640.26
4. Step 4: Simplify right side
   112,973.14x = 10,544,218,271.35
5. Step 5: Solve for x
   x = 10,544,218,271.35/112,973.14
6. Step 6: Final answer
   x = 93,333.85