Finding the Fourth Proportional to 103,782, 155,268.24 and 78,894

Step by Step Solution

1. Step 1: Write the proportion equation
   103,782 : 155,268.24 = 78,894 : x
2. Step 2: Convert to fraction form
   103,782/155,268.24 = 78,894/x
3. Step 3: Cross multiply
   103,782x = 155,268.24 × 78,894
4. Step 4: Simplify right side
   103,782x = 12,249,732,526.56
5. Step 5: Solve for x
   x = 12,249,732,526.56/103,782
6. Step 6: Final answer
   x = 118,033.31