Finding the Fourth Proportional to 76,735.80, 105,887.82 and 42,743.08

Step by Step Solution

1. Step 1: Write the proportion equation
   76,735.80 : 105,887.82 = 42,743.08 : x
2. Step 2: Convert to fraction form
   76,735.80/105,887.82 = 42,743.08/x
3. Step 3: Cross multiply
   76,735.80x = 105,887.82 × 42,743.08
4. Step 4: Simplify right side
   76,735.80x = 4,525,971,561.29
5. Step 5: Solve for x
   x = 4,525,971,561.29/76,735.80
6. Step 6: Final answer
   x = 58,981.23