Finding the Fourth Proportional to 542,624.72, 813,924.72 and 143,293.52

Step by Step Solution

1. Step 1: Write the proportion equation
   542,624.72 : 813,924.72 = 143,293.52 : x
2. Step 2: Convert to fraction form
   542,624.72/813,924.72 = 143,293.52/x
3. Step 3: Cross multiply
   542,624.72x = 813,924.72 × 143,293.52
4. Step 4: Simplify right side
   542,624.72x = 116,630,138,143.81
5. Step 5: Solve for x
   x = 116,630,138,143.81/542,624.72
6. Step 6: Final answer
   x = 214,937.02