Finding the Fourth Proportional to 70,521.86, 105,715.34 and 26,136.69

Step by Step Solution

1. Step 1: Write the proportion equation
   70,521.86 : 105,715.34 = 26,136.69 : x
2. Step 2: Convert to fraction form
   70,521.86/105,715.34 = 26,136.69/x
3. Step 3: Cross multiply
   70,521.86x = 105,715.34 × 26,136.69
4. Step 4: Simplify right side
   70,521.86x = 2,763,049,069.82
5. Step 5: Solve for x
   x = 2,763,049,069.82/70,521.86
6. Step 6: Final answer
   x = 39,180.04