Finding the Fourth Proportional to 52,641.38, 72,638.74 and 29,980.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,641.38 : 72,638.74 = 29,980.42 : x
2. Step 2: Convert to fraction form
   52,641.38/72,638.74 = 29,980.42/x
3. Step 3: Cross multiply
   52,641.38x = 72,638.74 × 29,980.42
4. Step 4: Simplify right side
   52,641.38x = 2,177,739,933.47
5. Step 5: Solve for x
   x = 2,177,739,933.47/52,641.38
6. Step 6: Final answer
   x = 41,369.35