Finding the Fourth Proportional to 134,905.83, 186,167.46 and 74,478.34

Step by Step Solution

1. Step 1: Write the proportion equation
   134,905.83 : 186,167.46 = 74,478.34 : x
2. Step 2: Convert to fraction form
   134,905.83/186,167.46 = 74,478.34/x
3. Step 3: Cross multiply
   134,905.83x = 186,167.46 × 74,478.34
4. Step 4: Simplify right side
   134,905.83x = 13,865,443,382.82
5. Step 5: Solve for x
   x = 13,865,443,382.82/134,905.83
6. Step 6: Final answer
   x = 102,778.68