Finding the Fourth Proportional to 103,978, 156,036.12 and 38,314

Step by Step Solution

1. Step 1: Write the proportion equation
   103,978 : 156,036.12 = 38,314 : x
2. Step 2: Convert to fraction form
   103,978/156,036.12 = 38,314/x
3. Step 3: Cross multiply
   103,978x = 156,036.12 × 38,314
4. Step 4: Simplify right side
   103,978x = 5,978,367,901.68
5. Step 5: Solve for x
   x = 5,978,367,901.68/103,978
6. Step 6: Final answer
   x = 57,496.47