Finding the Fourth Proportional to 174,378.57, 261,570.28 and 49,719.57

Step by Step Solution

1. Step 1: Write the proportion equation
   174,378.57 : 261,570.28 = 49,719.57 : x
2. Step 2: Convert to fraction form
   174,378.57/261,570.28 = 49,719.57/x
3. Step 3: Cross multiply
   174,378.57x = 261,570.28 × 49,719.57
4. Step 4: Simplify right side
   174,378.57x = 13,005,161,846.38
5. Step 5: Solve for x
   x = 13,005,161,846.38/174,378.57
6. Step 6: Final answer
   x = 74,580.05