Finding the Fourth Proportional to 72,116.38, 107,985.30 and 50,941.90

Step by Step Solution

1. Step 1: Write the proportion equation
   72,116.38 : 107,985.30 = 50,941.90 : x
2. Step 2: Convert to fraction form
   72,116.38/107,985.30 = 50,941.90/x
3. Step 3: Cross multiply
   72,116.38x = 107,985.30 × 50,941.90
4. Step 4: Simplify right side
   72,116.38x = 5,500,976,354.07
5. Step 5: Solve for x
   x = 5,500,976,354.07/72,116.38
6. Step 6: Final answer
   x = 76,279.15