Finding the Fourth Proportional to 91,065.60, 136,590.72 and 51,498.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,065.60 : 136,590.72 = 51,498.24 : x
2. Step 2: Convert to fraction form
   91,065.60/136,590.72 = 51,498.24/x
3. Step 3: Cross multiply
   91,065.60x = 136,590.72 × 51,498.24
4. Step 4: Simplify right side
   91,065.60x = 7,034,181,680.33
5. Step 5: Solve for x
   x = 7,034,181,680.33/91,065.60
6. Step 6: Final answer
   x = 77,243.02