Finding the Fourth Proportional to 72,043.83, 107,978.20 and 50,990.00

Step by Step Solution

1. Step 1: Write the proportion equation
   72,043.83 : 107,978.20 = 50,990.00 : x
2. Step 2: Convert to fraction form
   72,043.83/107,978.20 = 50,990.00/x
3. Step 3: Cross multiply
   72,043.83x = 107,978.20 × 50,990.00
4. Step 4: Simplify right side
   72,043.83x = 5,505,807,750.63
5. Step 5: Solve for x
   x = 5,505,807,750.63/72,043.83
6. Step 6: Final answer
   x = 76,423.03