Finding the Fourth Proportional to 52,772.01, 72,832.29 and 30,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,772.01 : 72,832.29 = 30,105.78 : x
2. Step 2: Convert to fraction form
   52,772.01/72,832.29 = 30,105.78/x
3. Step 3: Cross multiply
   52,772.01x = 72,832.29 × 30,105.78
4. Step 4: Simplify right side
   52,772.01x = 2,192,672,899.64
5. Step 5: Solve for x
   x = 2,192,672,899.64/52,772.01
6. Step 6: Final answer
   x = 41,549.92