Finding the Fourth Proportional to 153,093.72, 229,426.74 and 74,187

Step by Step Solution

1. Step 1: Write the proportion equation
   153,093.72 : 229,426.74 = 74,187 : x
2. Step 2: Convert to fraction form
   153,093.72/229,426.74 = 74,187/x
3. Step 3: Cross multiply
   153,093.72x = 229,426.74 × 74,187
4. Step 4: Simplify right side
   153,093.72x = 17,020,481,560.38
5. Step 5: Solve for x
   x = 17,020,481,560.38/153,093.72
6. Step 6: Final answer
   x = 111,176.88