Finding the Fourth Proportional to 101,008.19, 139,392.27 and 55,687.83

Step by Step Solution

1. Step 1: Write the proportion equation
   101,008.19 : 139,392.27 = 55,687.83 : x
2. Step 2: Convert to fraction form
   101,008.19/139,392.27 = 55,687.83/x
3. Step 3: Cross multiply
   101,008.19x = 139,392.27 × 55,687.83
4. Step 4: Simplify right side
   101,008.19x = 7,762,453,035.07
5. Step 5: Solve for x
   x = 7,762,453,035.07/101,008.19
6. Step 6: Final answer
   x = 76,849.74