Finding the Fourth Proportional to 101,003.76, 139,388.18 and 55,683.65

Step by Step Solution

1. Step 1: Write the proportion equation
   101,003.76 : 139,388.18 = 55,683.65 : x
2. Step 2: Convert to fraction form
   101,003.76/139,388.18 = 55,683.65/x
3. Step 3: Cross multiply
   101,003.76x = 139,388.18 × 55,683.65
4. Step 4: Simplify right side
   101,003.76x = 7,761,642,699.31
5. Step 5: Solve for x
   x = 7,761,642,699.31/101,003.76
6. Step 6: Final answer
   x = 76,845.09