Finding the Fourth Proportional to 16,887.86, 23,300.15 and 9,812.91

Step by Step Solution

1. Step 1: Write the proportion equation
   16,887.86 : 23,300.15 = 9,812.91 : x
2. Step 2: Convert to fraction form
   16,887.86/23,300.15 = 9,812.91/x
3. Step 3: Cross multiply
   16,887.86x = 23,300.15 × 9,812.91
4. Step 4: Simplify right side
   16,887.86x = 228,642,225.87
5. Step 5: Solve for x
   x = 228,642,225.87/16,887.86
6. Step 6: Final answer
   x = 13,538.86