Finding the Fourth Proportional to 9,925.76, 14,878.56 and 4,980.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,925.76 : 14,878.56 = 4,980.32 : x
2. Step 2: Convert to fraction form
   9,925.76/14,878.56 = 4,980.32/x
3. Step 3: Cross multiply
   9,925.76x = 14,878.56 × 4,980.32
4. Step 4: Simplify right side
   9,925.76x = 74,099,989.94
5. Step 5: Solve for x
   x = 74,099,989.94/9,925.76
6. Step 6: Final answer
   x = 7,465.42