Finding the Fourth Proportional to 43,200.56, 64,791.12 and 28,202.96

Step by Step Solution

1. Step 1: Write the proportion equation
   43,200.56 : 64,791.12 = 28,202.96 : x
2. Step 2: Convert to fraction form
   43,200.56/64,791.12 = 28,202.96/x
3. Step 3: Cross multiply
   43,200.56x = 64,791.12 × 28,202.96
4. Step 4: Simplify right side
   43,200.56x = 1,827,301,365.72
5. Step 5: Solve for x
   x = 1,827,301,365.72/43,200.56
6. Step 6: Final answer
   x = 42,298.09