Finding the Fourth Proportional to 78,361.73, 108,139.40 and 42,552.34

Step by Step Solution

1. Step 1: Write the proportion equation
   78,361.73 : 108,139.40 = 42,552.34 : x
2. Step 2: Convert to fraction form
   78,361.73/108,139.40 = 42,552.34/x
3. Step 3: Cross multiply
   78,361.73x = 108,139.40 × 42,552.34
4. Step 4: Simplify right side
   78,361.73x = 4,601,584,432.01
5. Step 5: Solve for x
   x = 4,601,584,432.01/78,361.73
6. Step 6: Final answer
   x = 58,722.34