Finding the Fourth Proportional to 53,200.21, 73,422.94 and 30,546.30

Step by Step Solution

1. Step 1: Write the proportion equation
   53,200.21 : 73,422.94 = 30,546.30 : x
2. Step 2: Convert to fraction form
   53,200.21/73,422.94 = 30,546.30/x
3. Step 3: Cross multiply
   53,200.21x = 73,422.94 × 30,546.30
4. Step 4: Simplify right side
   53,200.21x = 2,242,799,075.76
5. Step 5: Solve for x
   x = 2,242,799,075.76/53,200.21
6. Step 6: Final answer
   x = 42,157.71