Finding the Fourth Proportional to 101,009.29, 139,389.22 and 55,067.98

Step by Step Solution

1. Step 1: Write the proportion equation
   101,009.29 : 139,389.22 = 55,067.98 : x
2. Step 2: Convert to fraction form
   101,009.29/139,389.22 = 55,067.98/x
3. Step 3: Cross multiply
   101,009.29x = 139,389.22 × 55,067.98
4. Step 4: Simplify right side
   101,009.29x = 7,675,882,779.18
5. Step 5: Solve for x
   x = 7,675,882,779.18/101,009.29
6. Step 6: Final answer
   x = 75,991.85