Finding the Fourth Proportional to 69,513, 103,760.78 and 59,715.24

Step by Step Solution

1. Step 1: Write the proportion equation
   69,513 : 103,760.78 = 59,715.24 : x
2. Step 2: Convert to fraction form
   69,513/103,760.78 = 59,715.24/x
3. Step 3: Cross multiply
   69,513x = 103,760.78 × 59,715.24
4. Step 4: Simplify right side
   69,513x = 6,196,099,880.29
5. Step 5: Solve for x
   x = 6,196,099,880.29/69,513
6. Step 6: Final answer
   x = 89,135.84