Finding the Fourth Proportional to 148,119.21, 204,191.82 and 105,603.93

Step by Step Solution

1. Step 1: Write the proportion equation
   148,119.21 : 204,191.82 = 105,603.93 : x
2. Step 2: Convert to fraction form
   148,119.21/204,191.82 = 105,603.93/x
3. Step 3: Cross multiply
   148,119.21x = 204,191.82 × 105,603.93
4. Step 4: Simplify right side
   148,119.21x = 21,563,458,665.85
5. Step 5: Solve for x
   x = 21,563,458,665.85/148,119.21
6. Step 6: Final answer
   x = 145,581.78