Finding the Fourth Proportional to 72,774.78, 108,959.72 and 37,159.17

Step by Step Solution

1. Step 1: Write the proportion equation
   72,774.78 : 108,959.72 = 37,159.17 : x
2. Step 2: Convert to fraction form
   72,774.78/108,959.72 = 37,159.17/x
3. Step 3: Cross multiply
   72,774.78x = 108,959.72 × 37,159.17
4. Step 4: Simplify right side
   72,774.78x = 4,048,852,572.84
5. Step 5: Solve for x
   x = 4,048,852,572.84/72,774.78
6. Step 6: Final answer
   x = 55,635.38