Finding the Fourth Proportional to 20,492.77, 30,726.83 and 13,898.96

Step by Step Solution

1. Step 1: Write the proportion equation
   20,492.77 : 30,726.83 = 13,898.96 : x
2. Step 2: Convert to fraction form
   20,492.77/30,726.83 = 13,898.96/x
3. Step 3: Cross multiply
   20,492.77x = 30,726.83 × 13,898.96
4. Step 4: Simplify right side
   20,492.77x = 427,071,092.66
5. Step 5: Solve for x
   x = 427,071,092.66/20,492.77
6. Step 6: Final answer
   x = 20,840.09