Finding the Fourth Proportional to 101,047.74, 139,444.03 and 55,729.93

Step by Step Solution

1. Step 1: Write the proportion equation
   101,047.74 : 139,444.03 = 55,729.93 : x
2. Step 2: Convert to fraction form
   101,047.74/139,444.03 = 55,729.93/x
3. Step 3: Cross multiply
   101,047.74x = 139,444.03 × 55,729.93
4. Step 4: Simplify right side
   101,047.74x = 7,771,206,030.82
5. Step 5: Solve for x
   x = 7,771,206,030.82/101,047.74
6. Step 6: Final answer
   x = 76,906.28