Finding the Fourth Proportional to 76,622.75, 105,737.37 and 42,631.29

Step by Step Solution

1. Step 1: Write the proportion equation
   76,622.75 : 105,737.37 = 42,631.29 : x
2. Step 2: Convert to fraction form
   76,622.75/105,737.37 = 42,631.29/x
3. Step 3: Cross multiply
   76,622.75x = 105,737.37 × 42,631.29
4. Step 4: Simplify right side
   76,622.75x = 4,507,720,484.31
5. Step 5: Solve for x
   x = 4,507,720,484.31/76,622.75
6. Step 6: Final answer
   x = 58,830.06