Finding the Fourth Proportional to 91,300.60, 136,950.92 and 59,909.29

Step by Step Solution

1. Step 1: Write the proportion equation
   91,300.60 : 136,950.92 = 59,909.29 : x
2. Step 2: Convert to fraction form
   91,300.60/136,950.92 = 59,909.29/x
3. Step 3: Cross multiply
   91,300.60x = 136,950.92 × 59,909.29
4. Step 4: Simplify right side
   91,300.60x = 8,204,631,964.78
5. Step 5: Solve for x
   x = 8,204,631,964.78/91,300.60
6. Step 6: Final answer
   x = 89,863.94