Finding the Fourth Proportional to 70,566.48, 105,755.64 and 37,278.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,566.48 : 105,755.64 = 37,278.72 : x
2. Step 2: Convert to fraction form
   70,566.48/105,755.64 = 37,278.72/x
3. Step 3: Cross multiply
   70,566.48x = 105,755.64 × 37,278.72
4. Step 4: Simplify right side
   70,566.48x = 3,942,434,891.98
5. Step 5: Solve for x
   x = 3,942,434,891.98/70,566.48
6. Step 6: Final answer
   x = 55,868.38