Finding the Fourth Proportional to 9,876.70, 13,630.89 and 5,900.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,876.70 : 13,630.89 = 5,900.01 : x
2. Step 2: Convert to fraction form
   9,876.70/13,630.89 = 5,900.01/x
3. Step 3: Cross multiply
   9,876.70x = 13,630.89 × 5,900.01
4. Step 4: Simplify right side
   9,876.70x = 80,422,387.31
5. Step 5: Solve for x
   x = 80,422,387.31/9,876.70
6. Step 6: Final answer
   x = 8,142.64