Finding the Fourth Proportional to 140,501.61, 193,890.98 and 76,839.86

Step by Step Solution

1. Step 1: Write the proportion equation
   140,501.61 : 193,890.98 = 76,839.86 : x
2. Step 2: Convert to fraction form
   140,501.61/193,890.98 = 76,839.86/x
3. Step 3: Cross multiply
   140,501.61x = 193,890.98 × 76,839.86
4. Step 4: Simplify right side
   140,501.61x = 14,898,556,435.29
5. Step 5: Solve for x
   x = 14,898,556,435.29/140,501.61
6. Step 6: Final answer
   x = 106,038.33