Finding the Fourth Proportional to 101,041.74, 139,445.55 and 55,723.86

Step by Step Solution

1. Step 1: Write the proportion equation
   101,041.74 : 139,445.55 = 55,723.86 : x
2. Step 2: Convert to fraction form
   101,041.74/139,445.55 = 55,723.86/x
3. Step 3: Cross multiply
   101,041.74x = 139,445.55 × 55,723.86
4. Step 4: Simplify right side
   101,041.74x = 7,770,444,305.82
5. Step 5: Solve for x
   x = 7,770,444,305.82/101,041.74
6. Step 6: Final answer
   x = 76,903.31