Finding the Fourth Proportional to 77,141.39, 115,758.06 and 34,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   77,141.39 : 115,758.06 = 34,443.50 : x
2. Step 2: Convert to fraction form
   77,141.39/115,758.06 = 34,443.50/x
3. Step 3: Cross multiply
   77,141.39x = 115,758.06 × 34,443.50
4. Step 4: Simplify right side
   77,141.39x = 3,987,112,160.82
5. Step 5: Solve for x
   x = 3,987,112,160.82/77,141.39
6. Step 6: Final answer
   x = 51,685.77