Finding the Fourth Proportional to 61,017.86, 91,384.64 and 59,336.15

Step by Step Solution

1. Step 1: Write the proportion equation
   61,017.86 : 91,384.64 = 59,336.15 : x
2. Step 2: Convert to fraction form
   61,017.86/91,384.64 = 59,336.15/x
3. Step 3: Cross multiply
   61,017.86x = 91,384.64 × 59,336.15
4. Step 4: Simplify right side
   61,017.86x = 5,422,412,861.03
5. Step 5: Solve for x
   x = 5,422,412,861.03/61,017.86
6. Step 6: Final answer
   x = 88,865.99