Finding the Fourth Proportional to 152,452.72, 210,457.88 and 107,169.52

Step by Step Solution

1. Step 1: Write the proportion equation
   152,452.72 : 210,457.88 = 107,169.52 : x
2. Step 2: Convert to fraction form
   152,452.72/210,457.88 = 107,169.52/x
3. Step 3: Cross multiply
   152,452.72x = 210,457.88 × 107,169.52
4. Step 4: Simplify right side
   152,452.72x = 22,554,669,979.82
5. Step 5: Solve for x
   x = 22,554,669,979.82/152,452.72
6. Step 6: Final answer
   x = 147,945.34