Finding the Fourth Proportional to 51,211.04, 76,692.72 and 42,380.96

Step by Step Solution

1. Step 1: Write the proportion equation
   51,211.04 : 76,692.72 = 42,380.96 : x
2. Step 2: Convert to fraction form
   51,211.04/76,692.72 = 42,380.96/x
3. Step 3: Cross multiply
   51,211.04x = 76,692.72 × 42,380.96
4. Step 4: Simplify right side
   51,211.04x = 3,250,311,098.61
5. Step 5: Solve for x
   x = 3,250,311,098.61/51,211.04
6. Step 6: Final answer
   x = 63,468.95