Finding the Fourth Proportional to 101,175.76, 139,623.67 and 55,853.76

Step by Step Solution

1. Step 1: Write the proportion equation
   101,175.76 : 139,623.67 = 55,853.76 : x
2. Step 2: Convert to fraction form
   101,175.76/139,623.67 = 55,853.76/x
3. Step 3: Cross multiply
   101,175.76x = 139,623.67 × 55,853.76
4. Step 4: Simplify right side
   101,175.76x = 7,798,507,024.32
5. Step 5: Solve for x
   x = 7,798,507,024.32/101,175.76
6. Step 6: Final answer
   x = 77,078.81