Finding the Fourth Proportional to 101,103.25, 139,522.49 and 56,391.25

Step by Step Solution

1. Step 1: Write the proportion equation
   101,103.25 : 139,522.49 = 56,391.25 : x
2. Step 2: Convert to fraction form
   101,103.25/139,522.49 = 56,391.25/x
3. Step 3: Cross multiply
   101,103.25x = 139,522.49 × 56,391.25
4. Step 4: Simplify right side
   101,103.25x = 7,867,847,332.26
5. Step 5: Solve for x
   x = 7,867,847,332.26/101,103.25
6. Step 6: Final answer
   x = 77,819.93