Finding the Fourth Proportional to 148,253.94, 222,002.01 and 81,620.82

Step by Step Solution

1. Step 1: Write the proportion equation
   148,253.94 : 222,002.01 = 81,620.82 : x
2. Step 2: Convert to fraction form
   148,253.94/222,002.01 = 81,620.82/x
3. Step 3: Cross multiply
   148,253.94x = 222,002.01 × 81,620.82
4. Step 4: Simplify right side
   148,253.94x = 18,119,986,097.85
5. Step 5: Solve for x
   x = 18,119,986,097.85/148,253.94
6. Step 6: Final answer
   x = 122,222.63