Finding the Fourth Proportional to 72,445.19, 99,974.30 and 40,614.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,445.19 : 99,974.30 = 40,614.10 : x
2. Step 2: Convert to fraction form
   72,445.19/99,974.30 = 40,614.10/x
3. Step 3: Cross multiply
   72,445.19x = 99,974.30 × 40,614.10
4. Step 4: Simplify right side
   72,445.19x = 4,060,365,514.69
5. Step 5: Solve for x
   x = 4,060,365,514.69/72,445.19
6. Step 6: Final answer
   x = 56,047.41