Finding the Fourth Proportional to 9,887.78, 14,829.32 and 2,865.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887.78 : 14,829.32 = 2,865.93 : x
2. Step 2: Convert to fraction form
   9,887.78/14,829.32 = 2,865.93/x
3. Step 3: Cross multiply
   9,887.78x = 14,829.32 × 2,865.93
4. Step 4: Simplify right side
   9,887.78x = 42,499,800.23
5. Step 5: Solve for x
   x = 42,499,800.23/9,887.78
6. Step 6: Final answer
   x = 4,298.22