Finding the Fourth Proportional to 100,107, 138,151.98 and 55,395

Step by Step Solution

1. Step 1: Write the proportion equation
   100,107 : 138,151.98 = 55,395 : x
2. Step 2: Convert to fraction form
   100,107/138,151.98 = 55,395/x
3. Step 3: Cross multiply
   100,107x = 138,151.98 × 55,395
4. Step 4: Simplify right side
   100,107x = 7,652,928,932.10
5. Step 5: Solve for x
   x = 7,652,928,932.10/100,107
6. Step 6: Final answer
   x = 76,447.49