Finding the Fourth Proportional to 168,613.72, 252,914.72 and 42,255.08

Step by Step Solution

1. Step 1: Write the proportion equation
   168,613.72 : 252,914.72 = 42,255.08 : x
2. Step 2: Convert to fraction form
   168,613.72/252,914.72 = 42,255.08/x
3. Step 3: Cross multiply
   168,613.72x = 252,914.72 × 42,255.08
4. Step 4: Simplify right side
   168,613.72x = 10,686,931,726.78
5. Step 5: Solve for x
   x = 10,686,931,726.78/168,613.72
6. Step 6: Final answer
   x = 63,381.15