Finding the Fourth Proportional to 101,404.75, 139,933.03 and 56,080.09

Step by Step Solution

1. Step 1: Write the proportion equation
   101,404.75 : 139,933.03 = 56,080.09 : x
2. Step 2: Convert to fraction form
   101,404.75/139,933.03 = 56,080.09/x
3. Step 3: Cross multiply
   101,404.75x = 139,933.03 × 56,080.09
4. Step 4: Simplify right side
   101,404.75x = 7,847,456,916.37
5. Step 5: Solve for x
   x = 7,847,456,916.37/101,404.75
6. Step 6: Final answer
   x = 77,387.47