Finding the Fourth Proportional to 72,254.79, 99,738.36 and 54,401.58

Step by Step Solution

1. Step 1: Write the proportion equation
   72,254.79 : 99,738.36 = 54,401.58 : x
2. Step 2: Convert to fraction form
   72,254.79/99,738.36 = 54,401.58/x
3. Step 3: Cross multiply
   72,254.79x = 99,738.36 × 54,401.58
4. Step 4: Simplify right side
   72,254.79x = 5,425,924,370.61
5. Step 5: Solve for x
   x = 5,425,924,370.61/72,254.79
6. Step 6: Final answer
   x = 75,094.32