Finding the Fourth Proportional to 293,038.56, 404,472.06 and 172,260.78

Step by Step Solution

1. Step 1: Write the proportion equation
   293,038.56 : 404,472.06 = 172,260.78 : x
2. Step 2: Convert to fraction form
   293,038.56/404,472.06 = 172,260.78/x
3. Step 3: Cross multiply
   293,038.56x = 404,472.06 × 172,260.78
4. Step 4: Simplify right side
   293,038.56x = 69,674,672,543.81
5. Step 5: Solve for x
   x = 69,674,672,543.81/293,038.56
6. Step 6: Final answer
   x = 237,766.23