Finding the Fourth Proportional to 56,196.72, 84,285.36 and 19,260.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,196.72 : 84,285.36 = 19,260.72 : x
2. Step 2: Convert to fraction form
   56,196.72/84,285.36 = 19,260.72/x
3. Step 3: Cross multiply
   56,196.72x = 84,285.36 × 19,260.72
4. Step 4: Simplify right side
   56,196.72x = 1,623,396,719.06
5. Step 5: Solve for x
   x = 1,623,396,719.06/56,196.72
6. Step 6: Final answer
   x = 28,887.75