Finding the Fourth Proportional to 101,103.84, 139,524.72 and 55,783.80

Step by Step Solution

1. Step 1: Write the proportion equation
   101,103.84 : 139,524.72 = 55,783.80 : x
2. Step 2: Convert to fraction form
   101,103.84/139,524.72 = 55,783.80/x
3. Step 3: Cross multiply
   101,103.84x = 139,524.72 × 55,783.80
4. Step 4: Simplify right side
   101,103.84x = 7,783,219,075.54
5. Step 5: Solve for x
   x = 7,783,219,075.54/101,103.84
6. Step 6: Final answer
   x = 76,982.43