Finding the Fourth Proportional to 105,196.51, 156,868.25 and 104,248.81

Step by Step Solution

1. Step 1: Write the proportion equation
   105,196.51 : 156,868.25 = 104,248.81 : x
2. Step 2: Convert to fraction form
   105,196.51/156,868.25 = 104,248.81/x
3. Step 3: Cross multiply
   105,196.51x = 156,868.25 × 104,248.81
4. Step 4: Simplify right side
   105,196.51x = 16,353,328,389.28
5. Step 5: Solve for x
   x = 16,353,328,389.28/105,196.51
6. Step 6: Final answer
   x = 155,455.05