Finding the Fourth Proportional to 53,196.90, 73,410.69 and 28,998.09

Step by Step Solution

1. Step 1: Write the proportion equation
   53,196.90 : 73,410.69 = 28,998.09 : x
2. Step 2: Convert to fraction form
   53,196.90/73,410.69 = 28,998.09/x
3. Step 3: Cross multiply
   53,196.90x = 73,410.69 × 28,998.09
4. Step 4: Simplify right side
   53,196.90x = 2,128,769,795.58
5. Step 5: Solve for x
   x = 2,128,769,795.58/53,196.90
6. Step 6: Final answer
   x = 40,016.80