Finding the Fourth Proportional to 61,596.05, 91,956.57 and 59,409.05

Step by Step Solution

1. Step 1: Write the proportion equation
   61,596.05 : 91,956.57 = 59,409.05 : x
2. Step 2: Convert to fraction form
   61,596.05/91,956.57 = 59,409.05/x
3. Step 3: Cross multiply
   61,596.05x = 91,956.57 × 59,409.05
4. Step 4: Simplify right side
   61,596.05x = 5,463,051,782.39
5. Step 5: Solve for x
   x = 5,463,051,782.39/61,596.05
6. Step 6: Final answer
   x = 88,691.60