Finding the Fourth Proportional to 76,597.32, 105,702.78 and 42,604.64

Step by Step Solution

1. Step 1: Write the proportion equation
   76,597.32 : 105,702.78 = 42,604.64 : x
2. Step 2: Convert to fraction form
   76,597.32/105,702.78 = 42,604.64/x
3. Step 3: Cross multiply
   76,597.32x = 105,702.78 × 42,604.64
4. Step 4: Simplify right side
   76,597.32x = 4,503,428,888.90
5. Step 5: Solve for x
   x = 4,503,428,888.90/76,597.32
6. Step 6: Final answer
   x = 58,793.56