Finding the Fourth Proportional to 148,191, 204,503.58 and 81,123

Step by Step Solution

1. Step 1: Write the proportion equation
   148,191 : 204,503.58 = 81,123 : x
2. Step 2: Convert to fraction form
   148,191/204,503.58 = 81,123/x
3. Step 3: Cross multiply
   148,191x = 204,503.58 × 81,123
4. Step 4: Simplify right side
   148,191x = 16,589,943,920.34
5. Step 5: Solve for x
   x = 16,589,943,920.34/148,191
6. Step 6: Final answer
   x = 111,949.74