Finding the Fourth Proportional to 143,152.72, 214,662.40 and 53,132.74

Step by Step Solution

1. Step 1: Write the proportion equation
   143,152.72 : 214,662.40 = 53,132.74 : x
2. Step 2: Convert to fraction form
   143,152.72/214,662.40 = 53,132.74/x
3. Step 3: Cross multiply
   143,152.72x = 214,662.40 × 53,132.74
4. Step 4: Simplify right side
   143,152.72x = 11,405,601,486.98
5. Step 5: Solve for x
   x = 11,405,601,486.98/143,152.72
6. Step 6: Final answer
   x = 79,674.36