Finding the Fourth Proportional to 101,007.57, 139,387.88 and 55,684.51

Step by Step Solution

1. Step 1: Write the proportion equation
   101,007.57 : 139,387.88 = 55,684.51 : x
2. Step 2: Convert to fraction form
   101,007.57/139,387.88 = 55,684.51/x
3. Step 3: Cross multiply
   101,007.57x = 139,387.88 × 55,684.51
4. Step 4: Simplify right side
   101,007.57x = 7,761,745,588.48
5. Step 5: Solve for x
   x = 7,761,745,588.48/101,007.57
6. Step 6: Final answer
   x = 76,843.21