Finding the Fourth Proportional to 51,763.74, 71,438.52 and 30,538.86

Step by Step Solution

1. Step 1: Write the proportion equation
   51,763.74 : 71,438.52 = 30,538.86 : x
2. Step 2: Convert to fraction form
   51,763.74/71,438.52 = 30,538.86/x
3. Step 3: Cross multiply
   51,763.74x = 71,438.52 × 30,538.86
4. Step 4: Simplify right side
   51,763.74x = 2,181,650,960.89
5. Step 5: Solve for x
   x = 2,181,650,960.89/51,763.74
6. Step 6: Final answer
   x = 42,146.32