Finding the Fourth Proportional to 19,076.72, 28,611.80 and 5,225.68

Step by Step Solution

1. Step 1: Write the proportion equation
   19,076.72 : 28,611.80 = 5,225.68 : x
2. Step 2: Convert to fraction form
   19,076.72/28,611.80 = 5,225.68/x
3. Step 3: Cross multiply
   19,076.72x = 28,611.80 × 5,225.68
4. Step 4: Simplify right side
   19,076.72x = 149,516,111.02
5. Step 5: Solve for x
   x = 149,516,111.02/19,076.72
6. Step 6: Final answer
   x = 7,837.62