Finding the Fourth Proportional to 76,519.86, 105,597.99 and 42,529.02

Step by Step Solution

1. Step 1: Write the proportion equation
   76,519.86 : 105,597.99 = 42,529.02 : x
2. Step 2: Convert to fraction form
   76,519.86/105,597.99 = 42,529.02/x
3. Step 3: Cross multiply
   76,519.86x = 105,597.99 × 42,529.02
4. Step 4: Simplify right side
   76,519.86x = 4,490,979,028.67
5. Step 5: Solve for x
   x = 4,490,979,028.67/76,519.86
6. Step 6: Final answer
   x = 58,690.37