Finding the Fourth Proportional to 33,215.16, 45,827.12 and 19,779.72

Step by Step Solution

1. Step 1: Write the proportion equation
   33,215.16 : 45,827.12 = 19,779.72 : x
2. Step 2: Convert to fraction form
   33,215.16/45,827.12 = 19,779.72/x
3. Step 3: Cross multiply
   33,215.16x = 45,827.12 × 19,779.72
4. Step 4: Simplify right side
   33,215.16x = 906,447,602.01
5. Step 5: Solve for x
   x = 906,447,602.01/33,215.16
6. Step 6: Final answer
   x = 27,290.18