Finding the Fourth Proportional to 34,688.57, 52,016.63 and 12,499.02

Step by Step Solution

1. Step 1: Write the proportion equation
   34,688.57 : 52,016.63 = 12,499.02 : x
2. Step 2: Convert to fraction form
   34,688.57/52,016.63 = 12,499.02/x
3. Step 3: Cross multiply
   34,688.57x = 52,016.63 × 12,499.02
4. Step 4: Simplify right side
   34,688.57x = 650,156,836.21
5. Step 5: Solve for x
   x = 650,156,836.21/34,688.57
6. Step 6: Final answer
   x = 18,742.68