Finding the Fourth Proportional to 72,995.72, 100,726.54 and 53,885.64

Step by Step Solution

1. Step 1: Write the proportion equation
   72,995.72 : 100,726.54 = 53,885.64 : x
2. Step 2: Convert to fraction form
   72,995.72/100,726.54 = 53,885.64/x
3. Step 3: Cross multiply
   72,995.72x = 100,726.54 × 53,885.64
4. Step 4: Simplify right side
   72,995.72x = 5,427,714,072.89
5. Step 5: Solve for x
   x = 5,427,714,072.89/72,995.72
6. Step 6: Final answer
   x = 74,356.61