Finding the Fourth Proportional to 70,751.76, 105,896.88 and 52,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,751.76 : 105,896.88 = 52,026.72 : x
2. Step 2: Convert to fraction form
   70,751.76/105,896.88 = 52,026.72/x
3. Step 3: Cross multiply
   70,751.76x = 105,896.88 × 52,026.72
4. Step 4: Simplify right side
   70,751.76x = 5,509,467,324.63
5. Step 5: Solve for x
   x = 5,509,467,324.63/70,751.76
6. Step 6: Final answer
   x = 77,870.39