Finding the Fourth Proportional to 76,582, 105,686.32 and 42,590.32

Step by Step Solution

1. Step 1: Write the proportion equation
   76,582 : 105,686.32 = 42,590.32 : x
2. Step 2: Convert to fraction form
   76,582/105,686.32 = 42,590.32/x
3. Step 3: Cross multiply
   76,582x = 105,686.32 × 42,590.32
4. Step 4: Simplify right side
   76,582x = 4,501,214,188.42
5. Step 5: Solve for x
   x = 4,501,214,188.42/76,582
6. Step 6: Final answer
   x = 58,776.40