Finding the Fourth Proportional to 384,807.58, 531,025.27 and 215,074.52

Step by Step Solution

1. Step 1: Write the proportion equation
   384,807.58 : 531,025.27 = 215,074.52 : x
2. Step 2: Convert to fraction form
   384,807.58/531,025.27 = 215,074.52/x
3. Step 3: Cross multiply
   384,807.58x = 531,025.27 × 215,074.52
4. Step 4: Simplify right side
   384,807.58x = 114,210,005,053.12
5. Step 5: Solve for x
   x = 114,210,005,053.12/384,807.58
6. Step 6: Final answer
   x = 296,797.70