Finding the Fourth Proportional to 291,984.86, 402,940.23 and 162,928.78

Step by Step Solution

1. Step 1: Write the proportion equation
   291,984.86 : 402,940.23 = 162,928.78 : x
2. Step 2: Convert to fraction form
   291,984.86/402,940.23 = 162,928.78/x
3. Step 3: Cross multiply
   291,984.86x = 402,940.23 × 162,928.78
4. Step 4: Simplify right side
   291,984.86x = 65,650,560,086.82
5. Step 5: Solve for x
   x = 65,650,560,086.82/291,984.86
6. Step 6: Final answer
   x = 224,842.34