Finding the Fourth Proportional to 56,362.72, 84,580.98 and 21,302.38

Step by Step Solution

1. Step 1: Write the proportion equation
   56,362.72 : 84,580.98 = 21,302.38 : x
2. Step 2: Convert to fraction form
   56,362.72/84,580.98 = 21,302.38/x
3. Step 3: Cross multiply
   56,362.72x = 84,580.98 × 21,302.38
4. Step 4: Simplify right side
   56,362.72x = 1,801,776,176.73
5. Step 5: Solve for x
   x = 1,801,776,176.73/56,362.72
6. Step 6: Final answer
   x = 31,967.52