Finding the Fourth Proportional to 139,897.04, 193,057.31 and 76,234.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,897.04 : 193,057.31 = 76,234.83 : x
2. Step 2: Convert to fraction form
   139,897.04/193,057.31 = 76,234.83/x
3. Step 3: Cross multiply
   139,897.04x = 193,057.31 × 76,234.83
4. Step 4: Simplify right side
   139,897.04x = 14,717,690,826.93
5. Step 5: Solve for x
   x = 14,717,690,826.93/139,897.04
6. Step 6: Final answer
   x = 105,203.74