Finding the Fourth Proportional to 19,066.71, 28,588.52 and 8,534.77

Step by Step Solution

1. Step 1: Write the proportion equation
   19,066.71 : 28,588.52 = 8,534.77 : x
2. Step 2: Convert to fraction form
   19,066.71/28,588.52 = 8,534.77/x
3. Step 3: Cross multiply
   19,066.71x = 28,588.52 × 8,534.77
4. Step 4: Simplify right side
   19,066.71x = 243,996,392.71
5. Step 5: Solve for x
   x = 243,996,392.71/19,066.71
6. Step 6: Final answer
   x = 12,796.98