Finding the Fourth Proportional to 76,641, 105,763.54 and 43,107.08

Step by Step Solution

1. Step 1: Write the proportion equation
   76,641 : 105,763.54 = 43,107.08 : x
2. Step 2: Convert to fraction form
   76,641/105,763.54 = 43,107.08/x
3. Step 3: Cross multiply
   76,641x = 105,763.54 × 43,107.08
4. Step 4: Simplify right side
   76,641x = 4,559,157,379.86
5. Step 5: Solve for x
   x = 4,559,157,379.86/76,641
6. Step 6: Final answer
   x = 59,487.19