Finding the Fourth Proportional to 134,870, 202,314.72 and 51,764

Step by Step Solution

1. Step 1: Write the proportion equation
   134,870 : 202,314.72 = 51,764 : x
2. Step 2: Convert to fraction form
   134,870/202,314.72 = 51,764/x
3. Step 3: Cross multiply
   134,870x = 202,314.72 × 51,764
4. Step 4: Simplify right side
   134,870x = 10,472,619,166.08
5. Step 5: Solve for x
   x = 10,472,619,166.08/134,870
6. Step 6: Final answer
   x = 77,649.73