Finding the Fourth Proportional to 134,870.50, 202,315.47 and 51,764.50

Step by Step Solution

1. Step 1: Write the proportion equation
   134,870.50 : 202,315.47 = 51,764.50 : x
2. Step 2: Convert to fraction form
   134,870.50/202,315.47 = 51,764.50/x
3. Step 3: Cross multiply
   134,870.50x = 202,315.47 × 51,764.50
4. Step 4: Simplify right side
   134,870.50x = 10,472,759,146.82
5. Step 5: Solve for x
   x = 10,472,759,146.82/134,870.50
6. Step 6: Final answer
   x = 77,650.48