Finding the Fourth Proportional to 93,131.57, 128,521.46 and 50,690.00

Step by Step Solution

1. Step 1: Write the proportion equation
   93,131.57 : 128,521.46 = 50,690.00 : x
2. Step 2: Convert to fraction form
   93,131.57/128,521.46 = 50,690.00/x
3. Step 3: Cross multiply
   93,131.57x = 128,521.46 × 50,690.00
4. Step 4: Simplify right side
   93,131.57x = 6,514,752,291.52
5. Step 5: Solve for x
   x = 6,514,752,291.52/93,131.57
6. Step 6: Final answer
   x = 69,952.14