Finding the Fourth Proportional to 101,164.77, 139,607.41 and 55,842.78

Step by Step Solution

1. Step 1: Write the proportion equation
   101,164.77 : 139,607.41 = 55,842.78 : x
2. Step 2: Convert to fraction form
   101,164.77/139,607.41 = 55,842.78/x
3. Step 3: Cross multiply
   101,164.77x = 139,607.41 × 55,842.78
4. Step 4: Simplify right side
   101,164.77x = 7,796,066,476.33
5. Step 5: Solve for x
   x = 7,796,066,476.33/101,164.77
6. Step 6: Final answer
   x = 77,063.05