Finding the Fourth Proportional to 112,361.28, 168,476.72 and 53,196.45

Step by Step Solution

1. Step 1: Write the proportion equation
   112,361.28 : 168,476.72 = 53,196.45 : x
2. Step 2: Convert to fraction form
   112,361.28/168,476.72 = 53,196.45/x
3. Step 3: Cross multiply
   112,361.28x = 168,476.72 × 53,196.45
4. Step 4: Simplify right side
   112,361.28x = 8,962,363,145.66
5. Step 5: Solve for x
   x = 8,962,363,145.66/112,361.28
6. Step 6: Final answer
   x = 79,763.80