Finding the Fourth Proportional to 10,374.47, 15,562.41 and 2,978.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,374.47 : 15,562.41 = 2,978.76 : x
2. Step 2: Convert to fraction form
   10,374.47/15,562.41 = 2,978.76/x
3. Step 3: Cross multiply
   10,374.47x = 15,562.41 × 2,978.76
4. Step 4: Simplify right side
   10,374.47x = 46,356,684.41
5. Step 5: Solve for x
   x = 46,356,684.41/10,374.47
6. Step 6: Final answer
   x = 4,468.34