Finding the Fourth Proportional to 76,598.18, 105,702.96 and 42,605.72

Step by Step Solution

1. Step 1: Write the proportion equation
   76,598.18 : 105,702.96 = 42,605.72 : x
2. Step 2: Convert to fraction form
   76,598.18/105,702.96 = 42,605.72/x
3. Step 3: Cross multiply
   76,598.18x = 105,702.96 × 42,605.72
4. Step 4: Simplify right side
   76,598.18x = 4,503,550,188.42
5. Step 5: Solve for x
   x = 4,503,550,188.42/76,598.18
6. Step 6: Final answer
   x = 58,794.48