Finding the Fourth Proportional to 76,100.42, 105,118.92 and 58,413.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,100.42 : 105,118.92 = 58,413.98 : x
2. Step 2: Convert to fraction form
   76,100.42/105,118.92 = 58,413.98/x
3. Step 3: Cross multiply
   76,100.42x = 105,118.92 × 58,413.98
4. Step 4: Simplify right side
   76,100.42x = 6,140,414,490.50
5. Step 5: Solve for x
   x = 6,140,414,490.50/76,100.42
6. Step 6: Final answer
   x = 80,688.31