Finding the Fourth Proportional to 22,071.16, 30,460.98 and 13,688.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.16 : 30,460.98 = 13,688.92 : x
2. Step 2: Convert to fraction form
   22,071.16/30,460.98 = 13,688.92/x
3. Step 3: Cross multiply
   22,071.16x = 30,460.98 × 13,688.92
4. Step 4: Simplify right side
   22,071.16x = 416,977,918.34
5. Step 5: Solve for x
   x = 416,977,918.34/22,071.16
6. Step 6: Final answer
   x = 18,892.43