Finding the Fourth Proportional to 112,103.53, 154,615.39 and 71,821.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,103.53 : 154,615.39 = 71,821.04 : x
2. Step 2: Convert to fraction form
   112,103.53/154,615.39 = 71,821.04/x
3. Step 3: Cross multiply
   112,103.53x = 154,615.39 × 71,821.04
4. Step 4: Simplify right side
   112,103.53x = 11,104,638,109.81
5. Step 5: Solve for x
   x = 11,104,638,109.81/112,103.53
6. Step 6: Final answer
   x = 99,056.99