Finding the Fourth Proportional to 101,279.09, 139,773.33 and 55,961.04

Step by Step Solution

1. Step 1: Write the proportion equation
   101,279.09 : 139,773.33 = 55,961.04 : x
2. Step 2: Convert to fraction form
   101,279.09/139,773.33 = 55,961.04/x
3. Step 3: Cross multiply
   101,279.09x = 139,773.33 × 55,961.04
4. Step 4: Simplify right side
   101,279.09x = 7,821,861,435.21
5. Step 5: Solve for x
   x = 7,821,861,435.21/101,279.09
6. Step 6: Final answer
   x = 77,230.76