Finding the Fourth Proportional to 101,361.57, 139,881.89 and 56,042.48

Step by Step Solution

1. Step 1: Write the proportion equation
   101,361.57 : 139,881.89 = 56,042.48 : x
2. Step 2: Convert to fraction form
   101,361.57/139,881.89 = 56,042.48/x
3. Step 3: Cross multiply
   101,361.57x = 139,881.89 × 56,042.48
4. Step 4: Simplify right side
   101,361.57x = 7,839,327,043.07
5. Step 5: Solve for x
   x = 7,839,327,043.07/101,361.57
6. Step 6: Final answer
   x = 77,340.23