Finding the Fourth Proportional to 134,974.50, 186,264.83 and 78,389.52

Step by Step Solution

1. Step 1: Write the proportion equation
   134,974.50 : 186,264.83 = 78,389.52 : x
2. Step 2: Convert to fraction form
   134,974.50/186,264.83 = 78,389.52/x
3. Step 3: Cross multiply
   134,974.50x = 186,264.83 × 78,389.52
4. Step 4: Simplify right side
   134,974.50x = 14,601,210,224.63
5. Step 5: Solve for x
   x = 14,601,210,224.63/134,974.50
6. Step 6: Final answer
   x = 108,177.55