Finding the Fourth Proportional to 19,516.02, 29,322.17 and 12,499.07

Step by Step Solution

1. Step 1: Write the proportion equation
   19,516.02 : 29,322.17 = 12,499.07 : x
2. Step 2: Convert to fraction form
   19,516.02/29,322.17 = 12,499.07/x
3. Step 3: Cross multiply
   19,516.02x = 29,322.17 × 12,499.07
4. Step 4: Simplify right side
   19,516.02x = 366,499,646.28
5. Step 5: Solve for x
   x = 366,499,646.28/19,516.02
6. Step 6: Final answer
   x = 18,779.43