Finding the Fourth Proportional to 76,792.78, 105,972.42 and 42,801.10

Step by Step Solution

1. Step 1: Write the proportion equation
   76,792.78 : 105,972.42 = 42,801.10 : x
2. Step 2: Convert to fraction form
   76,792.78/105,972.42 = 42,801.10/x
3. Step 3: Cross multiply
   76,792.78x = 105,972.42 × 42,801.10
4. Step 4: Simplify right side
   76,792.78x = 4,535,736,145.66
5. Step 5: Solve for x
   x = 4,535,736,145.66/76,792.78
6. Step 6: Final answer
   x = 59,064.62