Finding the Fourth Proportional to 101,004.72, 139,386.51 and 55,683.48

Step by Step Solution

1. Step 1: Write the proportion equation
   101,004.72 : 139,386.51 = 55,683.48 : x
2. Step 2: Convert to fraction form
   101,004.72/139,386.51 = 55,683.48/x
3. Step 3: Cross multiply
   101,004.72x = 139,386.51 × 55,683.48
4. Step 4: Simplify right side
   101,004.72x = 7,761,525,941.85
5. Step 5: Solve for x
   x = 7,761,525,941.85/101,004.72
6. Step 6: Final answer
   x = 76,843.20