Finding the Fourth Proportional to 147,606.78, 221,426.58 and 54,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   147,606.78 : 221,426.58 = 54,112.50 : x
2. Step 2: Convert to fraction form
   147,606.78/221,426.58 = 54,112.50/x
3. Step 3: Cross multiply
   147,606.78x = 221,426.58 × 54,112.50
4. Step 4: Simplify right side
   147,606.78x = 11,981,945,810.25
5. Step 5: Solve for x
   x = 11,981,945,810.25/147,606.78
6. Step 6: Final answer
   x = 81,174.77