Finding the Fourth Proportional to 372,559.32, 514,117.56 and 211,404.78

Step by Step Solution

1. Step 1: Write the proportion equation
   372,559.32 : 514,117.56 = 211,404.78 : x
2. Step 2: Convert to fraction form
   372,559.32/514,117.56 = 211,404.78/x
3. Step 3: Cross multiply
   372,559.32x = 514,117.56 × 211,404.78
4. Step 4: Simplify right side
   372,559.32x = 108,686,909,665.94
5. Step 5: Solve for x
   x = 108,686,909,665.94/372,559.32
6. Step 6: Final answer
   x = 291,730.48