Finding the Fourth Proportional to 100,983, 139,354.68 and 55,043.04

Step by Step Solution

1. Step 1: Write the proportion equation
   100,983 : 139,354.68 = 55,043.04 : x
2. Step 2: Convert to fraction form
   100,983/139,354.68 = 55,043.04/x
3. Step 3: Cross multiply
   100,983x = 139,354.68 × 55,043.04
4. Step 4: Simplify right side
   100,983x = 7,670,505,225.43
5. Step 5: Solve for x
   x = 7,670,505,225.43/100,983
6. Step 6: Final answer
   x = 75,958.38