Finding the Fourth Proportional to 76,525.32, 105,604.38 and 42,991.32

Step by Step Solution

1. Step 1: Write the proportion equation
   76,525.32 : 105,604.38 = 42,991.32 : x
2. Step 2: Convert to fraction form
   76,525.32/105,604.38 = 42,991.32/x
3. Step 3: Cross multiply
   76,525.32x = 105,604.38 × 42,991.32
4. Step 4: Simplify right side
   76,525.32x = 4,540,071,693.98
5. Step 5: Solve for x
   x = 4,540,071,693.98/76,525.32
6. Step 6: Final answer
   x = 59,327.71