Finding the Fourth Proportional to 9,907.79, 14,861.88 and 2,888.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,907.79 : 14,861.88 = 2,888.33 : x
2. Step 2: Convert to fraction form
   9,907.79/14,861.88 = 2,888.33/x
3. Step 3: Cross multiply
   9,907.79x = 14,861.88 × 2,888.33
4. Step 4: Simplify right side
   9,907.79x = 42,925,939.55
5. Step 5: Solve for x
   x = 42,925,939.55/9,907.79
6. Step 6: Final answer
   x = 4,332.55