Finding the Fourth Proportional to 76,792.68, 105,971.22 and 42,800.04

Step by Step Solution

1. Step 1: Write the proportion equation
   76,792.68 : 105,971.22 = 42,800.04 : x
2. Step 2: Convert to fraction form
   76,792.68/105,971.22 = 42,800.04/x
3. Step 3: Cross multiply
   76,792.68x = 105,971.22 × 42,800.04
4. Step 4: Simplify right side
   76,792.68x = 4,535,572,454.85
5. Step 5: Solve for x
   x = 4,535,572,454.85/76,792.68
6. Step 6: Final answer
   x = 59,062.56