Finding the Fourth Proportional to 389,111.58, 583,929.90 and 152,424.72

Step by Step Solution

1. Step 1: Write the proportion equation
   389,111.58 : 583,929.90 = 152,424.72 : x
2. Step 2: Convert to fraction form
   389,111.58/583,929.90 = 152,424.72/x
3. Step 3: Cross multiply
   389,111.58x = 583,929.90 × 152,424.72
4. Step 4: Simplify right side
   389,111.58x = 89,005,351,507.13
5. Step 5: Solve for x
   x = 89,005,351,507.13/389,111.58
6. Step 6: Final answer
   x = 228,739.92