Finding the Fourth Proportional to 16,156.74, 22,296.78 and 9,781.98

Step by Step Solution

1. Step 1: Write the proportion equation
   16,156.74 : 22,296.78 = 9,781.98 : x
2. Step 2: Convert to fraction form
   16,156.74/22,296.78 = 9,781.98/x
3. Step 3: Cross multiply
   16,156.74x = 22,296.78 × 9,781.98
4. Step 4: Simplify right side
   16,156.74x = 218,106,656.02
5. Step 5: Solve for x
   x = 218,106,656.02/16,156.74
6. Step 6: Final answer
   x = 13,499.42