Finding the Fourth Proportional to 101,233.49, 139,703.27 and 55,912.61

Step by Step Solution

1. Step 1: Write the proportion equation
   101,233.49 : 139,703.27 = 55,912.61 : x
2. Step 2: Convert to fraction form
   101,233.49/139,703.27 = 55,912.61/x
3. Step 3: Cross multiply
   101,233.49x = 139,703.27 × 55,912.61
4. Step 4: Simplify right side
   101,233.49x = 7,811,173,473.16
5. Step 5: Solve for x
   x = 7,811,173,473.16/101,233.49
6. Step 6: Final answer
   x = 77,159.98