Finding the Fourth Proportional to 272,077, 408,139.02 and 75,085

Step by Step Solution

1. Step 1: Write the proportion equation
   272,077 : 408,139.02 = 75,085 : x
2. Step 2: Convert to fraction form
   272,077/408,139.02 = 75,085/x
3. Step 3: Cross multiply
   272,077x = 408,139.02 × 75,085
4. Step 4: Simplify right side
   272,077x = 30,645,118,316.70
5. Step 5: Solve for x
   x = 30,645,118,316.70/272,077
6. Step 6: Final answer
   x = 112,633.99