Finding the Fourth Proportional to 83,835, 115,633.71 and 55,145.61

Step by Step Solution

1. Step 1: Write the proportion equation
   83,835 : 115,633.71 = 55,145.61 : x
2. Step 2: Convert to fraction form
   83,835/115,633.71 = 55,145.61/x
3. Step 3: Cross multiply
   83,835x = 115,633.71 × 55,145.61
4. Step 4: Simplify right side
   83,835x = 6,376,691,474.51
5. Step 5: Solve for x
   x = 6,376,691,474.51/83,835
6. Step 6: Final answer
   x = 76,062.40