Finding the Fourth Proportional to 52,415.16, 72,308.73 and 30,890.22

Step by Step Solution

1. Step 1: Write the proportion equation
   52,415.16 : 72,308.73 = 30,890.22 : x
2. Step 2: Convert to fraction form
   52,415.16/72,308.73 = 30,890.22/x
3. Step 3: Cross multiply
   52,415.16x = 72,308.73 × 30,890.22
4. Step 4: Simplify right side
   52,415.16x = 2,233,632,577.62
5. Step 5: Solve for x
   x = 2,233,632,577.62/52,415.16
6. Step 6: Final answer
   x = 42,614.25