Finding the Fourth Proportional to 90,924.56, 125,514.72 and 61,133.84

Step by Step Solution

1. Step 1: Write the proportion equation
   90,924.56 : 125,514.72 = 61,133.84 : x
2. Step 2: Convert to fraction form
   90,924.56/125,514.72 = 61,133.84/x
3. Step 3: Cross multiply
   90,924.56x = 125,514.72 × 61,133.84
4. Step 4: Simplify right side
   90,924.56x = 7,673,196,810.12
5. Step 5: Solve for x
   x = 7,673,196,810.12/90,924.56
6. Step 6: Final answer
   x = 84,390.80