Finding the Fourth Proportional to 51,241.63, 70,719.61 and 30,020.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,241.63 : 70,719.61 = 30,020.88 : x
2. Step 2: Convert to fraction form
   51,241.63/70,719.61 = 30,020.88/x
3. Step 3: Cross multiply
   51,241.63x = 70,719.61 × 30,020.88
4. Step 4: Simplify right side
   51,241.63x = 2,123,064,925.46
5. Step 5: Solve for x
   x = 2,123,064,925.46/51,241.63
6. Step 6: Final answer
   x = 41,432.42