Finding the Fourth Proportional to 22,300.08, 30,761.28 and 13,902

Step by Step Solution

1. Step 1: Write the proportion equation
   22,300.08 : 30,761.28 = 13,902 : x
2. Step 2: Convert to fraction form
   22,300.08/30,761.28 = 13,902/x
3. Step 3: Cross multiply
   22,300.08x = 30,761.28 × 13,902
4. Step 4: Simplify right side
   22,300.08x = 427,643,314.56
5. Step 5: Solve for x
   x = 427,643,314.56/22,300.08
6. Step 6: Final answer
   x = 19,176.76