Finding the Fourth Proportional to 53,222.72, 73,444.00 and 30,545.75

Step by Step Solution

1. Step 1: Write the proportion equation
   53,222.72 : 73,444.00 = 30,545.75 : x
2. Step 2: Convert to fraction form
   53,222.72/73,444.00 = 30,545.75/x
3. Step 3: Cross multiply
   53,222.72x = 73,444.00 × 30,545.75
4. Step 4: Simplify right side
   53,222.72x = 2,243,402,020.96
5. Step 5: Solve for x
   x = 2,243,402,020.96/53,222.72
6. Step 6: Final answer
   x = 42,151.21