Finding the Fourth Proportional to 102,579.41, 153,835.89 and 34,172.81

Step by Step Solution

1. Step 1: Write the proportion equation
   102,579.41 : 153,835.89 = 34,172.81 : x
2. Step 2: Convert to fraction form
   102,579.41/153,835.89 = 34,172.81/x
3. Step 3: Cross multiply
   102,579.41x = 153,835.89 × 34,172.81
4. Step 4: Simplify right side
   102,579.41x = 5,257,004,640.15
5. Step 5: Solve for x
   x = 5,257,004,640.15/102,579.41
6. Step 6: Final answer
   x = 51,248.15