Finding the Fourth Proportional to 76,559.22, 105,656.51 and 42,575.31

Step by Step Solution

1. Step 1: Write the proportion equation
   76,559.22 : 105,656.51 = 42,575.31 : x
2. Step 2: Convert to fraction form
   76,559.22/105,656.51 = 42,575.31/x
3. Step 3: Cross multiply
   76,559.22x = 105,656.51 × 42,575.31
4. Step 4: Simplify right side
   76,559.22x = 4,498,358,666.77
5. Step 5: Solve for x
   x = 4,498,358,666.77/76,559.22
6. Step 6: Final answer
   x = 58,756.59