Finding the Fourth Proportional to 300,089.08, 450,002.34 and 142,362.52

Step by Step Solution

1. Step 1: Write the proportion equation
   300,089.08 : 450,002.34 = 142,362.52 : x
2. Step 2: Convert to fraction form
   300,089.08/450,002.34 = 142,362.52/x
3. Step 3: Cross multiply
   300,089.08x = 450,002.34 × 142,362.52
4. Step 4: Simplify right side
   300,089.08x = 64,063,467,128.30
5. Step 5: Solve for x
   x = 64,063,467,128.30/300,089.08
6. Step 6: Final answer
   x = 213,481.50