Finding the Fourth Proportional to 19,665.63, 29,500.86 and 7,191.53

Step by Step Solution

1. Step 1: Write the proportion equation
   19,665.63 : 29,500.86 = 7,191.53 : x
2. Step 2: Convert to fraction form
   19,665.63/29,500.86 = 7,191.53/x
3. Step 3: Cross multiply
   19,665.63x = 29,500.86 × 7,191.53
4. Step 4: Simplify right side
   19,665.63x = 212,156,172.21
5. Step 5: Solve for x
   x = 212,156,172.21/19,665.63
6. Step 6: Final answer
   x = 10,788.17