Finding the Fourth Proportional to 101,002.81, 139,392.18 and 55,684.93

Step by Step Solution

1. Step 1: Write the proportion equation
   101,002.81 : 139,392.18 = 55,684.93 : x
2. Step 2: Convert to fraction form
   101,002.81/139,392.18 = 55,684.93/x
3. Step 3: Cross multiply
   101,002.81x = 139,392.18 × 55,684.93
4. Step 4: Simplify right side
   101,002.81x = 7,762,043,785.85
5. Step 5: Solve for x
   x = 7,762,043,785.85/101,002.81
6. Step 6: Final answer
   x = 76,849.78