Finding the Fourth Proportional to 101,184.72, 139,635.12 and 55,862.79

Step by Step Solution

1. Step 1: Write the proportion equation
   101,184.72 : 139,635.12 = 55,862.79 : x
2. Step 2: Convert to fraction form
   101,184.72/139,635.12 = 55,862.79/x
3. Step 3: Cross multiply
   101,184.72x = 139,635.12 × 55,862.79
4. Step 4: Simplify right side
   101,184.72x = 7,800,407,769.21
5. Step 5: Solve for x
   x = 7,800,407,769.21/101,184.72
6. Step 6: Final answer
   x = 77,090.77