Finding the Fourth Proportional to 101,118.64, 139,543.55 and 55,796.58

Step by Step Solution

1. Step 1: Write the proportion equation
   101,118.64 : 139,543.55 = 55,796.58 : x
2. Step 2: Convert to fraction form
   101,118.64/139,543.55 = 55,796.58/x
3. Step 3: Cross multiply
   101,118.64x = 139,543.55 × 55,796.58
4. Step 4: Simplify right side
   101,118.64x = 7,786,053,487.64
5. Step 5: Solve for x
   x = 7,786,053,487.64/101,118.64
6. Step 6: Final answer
   x = 76,999.19