Finding the Fourth Proportional to 76,482.72, 105,545.52 and 42,948

Step by Step Solution

1. Step 1: Write the proportion equation
   76,482.72 : 105,545.52 = 42,948 : x
2. Step 2: Convert to fraction form
   76,482.72/105,545.52 = 42,948/x
3. Step 3: Cross multiply
   76,482.72x = 105,545.52 × 42,948
4. Step 4: Simplify right side
   76,482.72x = 4,532,968,992.96
5. Step 5: Solve for x
   x = 4,532,968,992.96/76,482.72
6. Step 6: Final answer
   x = 59,267.88