Finding the Fourth Proportional to 51,391.56, 77,096.15 and 17,655.98

Step by Step Solution

1. Step 1: Write the proportion equation
   51,391.56 : 77,096.15 = 17,655.98 : x
2. Step 2: Convert to fraction form
   51,391.56/77,096.15 = 17,655.98/x
3. Step 3: Cross multiply
   51,391.56x = 77,096.15 × 17,655.98
4. Step 4: Simplify right side
   51,391.56x = 1,361,207,608.72
5. Step 5: Solve for x
   x = 1,361,207,608.72/51,391.56
6. Step 6: Final answer
   x = 26,486.99