Finding the Fourth Proportional to 10,081.71, 15,123.78 and 4,237.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.71 : 15,123.78 = 4,237.56 : x
2. Step 2: Convert to fraction form
   10,081.71/15,123.78 = 4,237.56/x
3. Step 3: Cross multiply
   10,081.71x = 15,123.78 × 4,237.56
4. Step 4: Simplify right side
   10,081.71x = 64,087,925.18
5. Step 5: Solve for x
   x = 64,087,925.18/10,081.71
6. Step 6: Final answer
   x = 6,356.85