Finding the Fourth Proportional to 101,103.80, 139,522.34 and 55,782.18

Step by Step Solution

1. Step 1: Write the proportion equation
   101,103.80 : 139,522.34 = 55,782.18 : x
2. Step 2: Convert to fraction form
   101,103.80/139,522.34 = 55,782.18/x
3. Step 3: Cross multiply
   101,103.80x = 139,522.34 × 55,782.18
4. Step 4: Simplify right side
   101,103.80x = 7,782,860,283.90
5. Step 5: Solve for x
   x = 7,782,860,283.90/101,103.80
6. Step 6: Final answer
   x = 76,978.91