Finding the Fourth Proportional to 105,869, 146,112.18 and 61,157

Step by Step Solution

1. Step 1: Write the proportion equation
   105,869 : 146,112.18 = 61,157 : x
2. Step 2: Convert to fraction form
   105,869/146,112.18 = 61,157/x
3. Step 3: Cross multiply
   105,869x = 146,112.18 × 61,157
4. Step 4: Simplify right side
   105,869x = 8,935,782,592.26
5. Step 5: Solve for x
   x = 8,935,782,592.26/105,869
6. Step 6: Final answer
   x = 84,404.15