Finding the Fourth Proportional to 112,069.36, 168,128.96 and 48,899.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,069.36 : 168,128.96 = 48,899.72 : x
2. Step 2: Convert to fraction form
   112,069.36/168,128.96 = 48,899.72/x
3. Step 3: Cross multiply
   112,069.36x = 168,128.96 × 48,899.72
4. Step 4: Simplify right side
   112,069.36x = 8,221,459,067.89
5. Step 5: Solve for x
   x = 8,221,459,067.89/112,069.36
6. Step 6: Final answer
   x = 73,360.45