Finding the Fourth Proportional to 272,719.98, 409,003.38 and 104,124.15

Step by Step Solution

1. Step 1: Write the proportion equation
   272,719.98 : 409,003.38 = 104,124.15 : x
2. Step 2: Convert to fraction form
   272,719.98/409,003.38 = 104,124.15/x
3. Step 3: Cross multiply
   272,719.98x = 409,003.38 × 104,124.15
4. Step 4: Simplify right side
   272,719.98x = 42,587,129,289.63
5. Step 5: Solve for x
   x = 42,587,129,289.63/272,719.98
6. Step 6: Final answer
   x = 156,156.98