Finding the Fourth Proportional to 101,945.98, 140,684.31 and 56,624.38

Step by Step Solution

1. Step 1: Write the proportion equation
   101,945.98 : 140,684.31 = 56,624.38 : x
2. Step 2: Convert to fraction form
   101,945.98/140,684.31 = 56,624.38/x
3. Step 3: Cross multiply
   101,945.98x = 140,684.31 × 56,624.38
4. Step 4: Simplify right side
   101,945.98x = 7,966,161,829.48
5. Step 5: Solve for x
   x = 7,966,161,829.48/101,945.98
6. Step 6: Final answer
   x = 78,141.01