Finding the Fourth Proportional to 53,978.05, 80,807.15 and 40,000.82

Step by Step Solution

1. Step 1: Write the proportion equation
   53,978.05 : 80,807.15 = 40,000.82 : x
2. Step 2: Convert to fraction form
   53,978.05/80,807.15 = 40,000.82/x
3. Step 3: Cross multiply
   53,978.05x = 80,807.15 × 40,000.82
4. Step 4: Simplify right side
   53,978.05x = 3,232,351,657.82
5. Step 5: Solve for x
   x = 3,232,351,657.82/53,978.05
6. Step 6: Final answer
   x = 59,882.71