Finding the Fourth Proportional to 108,978.06, 163,493.43 and 37,890.42

Step by Step Solution

1. Step 1: Write the proportion equation
   108,978.06 : 163,493.43 = 37,890.42 : x
2. Step 2: Convert to fraction form
   108,978.06/163,493.43 = 37,890.42/x
3. Step 3: Cross multiply
   108,978.06x = 163,493.43 × 37,890.42
4. Step 4: Simplify right side
   108,978.06x = 6,194,834,729.94
5. Step 5: Solve for x
   x = 6,194,834,729.94/108,978.06
6. Step 6: Final answer
   x = 56,844.79