Finding the Fourth Proportional to 291,456.48, 402,230.52 and 162,403.50

Step by Step Solution

1. Step 1: Write the proportion equation
   291,456.48 : 402,230.52 = 162,403.50 : x
2. Step 2: Convert to fraction form
   291,456.48/402,230.52 = 162,403.50/x
3. Step 3: Cross multiply
   291,456.48x = 402,230.52 × 162,403.50
4. Step 4: Simplify right side
   291,456.48x = 65,323,644,254.82
5. Step 5: Solve for x
   x = 65,323,644,254.82/291,456.48
6. Step 6: Final answer
   x = 224,128.30