Finding the Fourth Proportional to 153,981.14, 231,075.59 and 54,141.89

Step by Step Solution

1. Step 1: Write the proportion equation
   153,981.14 : 231,075.59 = 54,141.89 : x
2. Step 2: Convert to fraction form
   153,981.14/231,075.59 = 54,141.89/x
3. Step 3: Cross multiply
   153,981.14x = 231,075.59 × 54,141.89
4. Step 4: Simplify right side
   153,981.14x = 12,510,867,749.38
5. Step 5: Solve for x
   x = 12,510,867,749.38/153,981.14
6. Step 6: Final answer
   x = 81,249.35