Finding the Fourth Proportional to 78,752.17, 108,677.73 and 42,942.09

Step by Step Solution

1. Step 1: Write the proportion equation
   78,752.17 : 108,677.73 = 42,942.09 : x
2. Step 2: Convert to fraction form
   78,752.17/108,677.73 = 42,942.09/x
3. Step 3: Cross multiply
   78,752.17x = 108,677.73 × 42,942.09
4. Step 4: Simplify right side
   78,752.17x = 4,666,848,862.66
5. Step 5: Solve for x
   x = 4,666,848,862.66/78,752.17
6. Step 6: Final answer
   x = 59,259.94