Finding the Fourth Proportional to 36,886.42, 55,384.98 and 21,109.27

Step by Step Solution

1. Step 1: Write the proportion equation
   36,886.42 : 55,384.98 = 21,109.27 : x
2. Step 2: Convert to fraction form
   36,886.42/55,384.98 = 21,109.27/x
3. Step 3: Cross multiply
   36,886.42x = 55,384.98 × 21,109.27
4. Step 4: Simplify right side
   36,886.42x = 1,169,136,345.96
5. Step 5: Solve for x
   x = 1,169,136,345.96/36,886.42
6. Step 6: Final answer
   x = 31,695.58