Finding the Fourth Proportional to 103,185.59, 154,778.58 and 28,306.76

Step by Step Solution

1. Step 1: Write the proportion equation
   103,185.59 : 154,778.58 = 28,306.76 : x
2. Step 2: Convert to fraction form
   103,185.59/154,778.58 = 28,306.76/x
3. Step 3: Cross multiply
   103,185.59x = 154,778.58 × 28,306.76
4. Step 4: Simplify right side
   103,185.59x = 4,381,279,343.31
5. Step 5: Solve for x
   x = 4,381,279,343.31/103,185.59
6. Step 6: Final answer
   x = 42,460.19