Finding the Fourth Proportional to 53,300.30, 73,553.27 and 30,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   53,300.30 : 73,553.27 = 30,638.69 : x
2. Step 2: Convert to fraction form
   53,300.30/73,553.27 = 30,638.69/x
3. Step 3: Cross multiply
   53,300.30x = 73,553.27 × 30,638.69
4. Step 4: Simplify right side
   53,300.30x = 2,253,575,592.88
5. Step 5: Solve for x
   x = 2,253,575,592.88/53,300.30
6. Step 6: Final answer
   x = 42,280.73