Finding the Fourth Proportional to 101,085.85, 139,498.47 and 55,763.94

Step by Step Solution

1. Step 1: Write the proportion equation
   101,085.85 : 139,498.47 = 55,763.94 : x
2. Step 2: Convert to fraction form
   101,085.85/139,498.47 = 55,763.94/x
3. Step 3: Cross multiply
   101,085.85x = 139,498.47 × 55,763.94
4. Step 4: Simplify right side
   101,085.85x = 7,778,984,311.17
5. Step 5: Solve for x
   x = 7,778,984,311.17/101,085.85
6. Step 6: Final answer
   x = 76,954.24