Finding the Fourth Proportional to 28,651.35, 42,977.58 and 9,932.00

Step by Step Solution

1. Step 1: Write the proportion equation
   28,651.35 : 42,977.58 = 9,932.00 : x
2. Step 2: Convert to fraction form
   28,651.35/42,977.58 = 9,932.00/x
3. Step 3: Cross multiply
   28,651.35x = 42,977.58 × 9,932.00
4. Step 4: Simplify right side
   28,651.35x = 426,853,109.67
5. Step 5: Solve for x
   x = 426,853,109.67/28,651.35
6. Step 6: Final answer
   x = 14,898.18