Finding the Fourth Proportional to 53,011.72, 73,157.52 and 29,139

Step by Step Solution

1. Step 1: Write the proportion equation
   53,011.72 : 73,157.52 = 29,139 : x
2. Step 2: Convert to fraction form
   53,011.72/73,157.52 = 29,139/x
3. Step 3: Cross multiply
   53,011.72x = 73,157.52 × 29,139
4. Step 4: Simplify right side
   53,011.72x = 2,131,736,975.28
5. Step 5: Solve for x
   x = 2,131,736,975.28/53,011.72
6. Step 6: Final answer
   x = 40,212.56