Finding the Fourth Proportional to 12,748.76, 19,111.62 and 4,538.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,748.76 : 19,111.62 = 4,538.84 : x
2. Step 2: Convert to fraction form
   12,748.76/19,111.62 = 4,538.84/x
3. Step 3: Cross multiply
   12,748.76x = 19,111.62 × 4,538.84
4. Step 4: Simplify right side
   12,748.76x = 86,744,585.32
5. Step 5: Solve for x
   x = 86,744,585.32/12,748.76
6. Step 6: Final answer
   x = 6,804.16