Finding the Fourth Proportional to 78,806.31, 108,753.06 and 42,997.07

Step by Step Solution

1. Step 1: Write the proportion equation
   78,806.31 : 108,753.06 = 42,997.07 : x
2. Step 2: Convert to fraction form
   78,806.31/108,753.06 = 42,997.07/x
3. Step 3: Cross multiply
   78,806.31x = 108,753.06 × 42,997.07
4. Step 4: Simplify right side
   78,806.31x = 4,676,062,933.53
5. Step 5: Solve for x
   x = 4,676,062,933.53/78,806.31
6. Step 6: Final answer
   x = 59,336.15