Finding the Fourth Proportional to 101,300.25, 139,794.35 and 56,588.25

Step by Step Solution

1. Step 1: Write the proportion equation
   101,300.25 : 139,794.35 = 56,588.25 : x
2. Step 2: Convert to fraction form
   101,300.25/139,794.35 = 56,588.25/x
3. Step 3: Cross multiply
   101,300.25x = 139,794.35 × 56,588.25
4. Step 4: Simplify right side
   101,300.25x = 7,910,717,626.39
5. Step 5: Solve for x
   x = 7,910,717,626.39/101,300.25
6. Step 6: Final answer
   x = 78,091.79