Finding the Fourth Proportional to 76,451.70, 105,482.61 and 42,916.98

Step by Step Solution

1. Step 1: Write the proportion equation
   76,451.70 : 105,482.61 = 42,916.98 : x
2. Step 2: Convert to fraction form
   76,451.70/105,482.61 = 42,916.98/x
3. Step 3: Cross multiply
   76,451.70x = 105,482.61 × 42,916.98
4. Step 4: Simplify right side
   76,451.70x = 4,526,995,063.72
5. Step 5: Solve for x
   x = 4,526,995,063.72/76,451.70
6. Step 6: Final answer
   x = 59,213.79