Finding the Fourth Proportional to 22,088.84, 30,471.86 and 13,130

Step by Step Solution

1. Step 1: Write the proportion equation
   22,088.84 : 30,471.86 = 13,130 : x
2. Step 2: Convert to fraction form
   22,088.84/30,471.86 = 13,130/x
3. Step 3: Cross multiply
   22,088.84x = 30,471.86 × 13,130
4. Step 4: Simplify right side
   22,088.84x = 400,095,521.80
5. Step 5: Solve for x
   x = 400,095,521.80/22,088.84
6. Step 6: Final answer
   x = 18,113.02