Finding the Fourth Proportional to 51,123.31, 76,692.08 and 17,838.59

Step by Step Solution

1. Step 1: Write the proportion equation
   51,123.31 : 76,692.08 = 17,838.59 : x
2. Step 2: Convert to fraction form
   51,123.31/76,692.08 = 17,838.59/x
3. Step 3: Cross multiply
   51,123.31x = 76,692.08 × 17,838.59
4. Step 4: Simplify right side
   51,123.31x = 1,368,078,232.50
5. Step 5: Solve for x
   x = 1,368,078,232.50/51,123.31
6. Step 6: Final answer
   x = 26,760.36