Finding the Fourth Proportional to 140,503.38, 193,897.56 and 76,845.30

Step by Step Solution

1. Step 1: Write the proportion equation
   140,503.38 : 193,897.56 = 76,845.30 : x
2. Step 2: Convert to fraction form
   140,503.38/193,897.56 = 76,845.30/x
3. Step 3: Cross multiply
   140,503.38x = 193,897.56 × 76,845.30
4. Step 4: Simplify right side
   140,503.38x = 14,900,116,167.47
5. Step 5: Solve for x
   x = 14,900,116,167.47/140,503.38
6. Step 6: Final answer
   x = 106,048.10