Finding the Fourth Proportional to 52,088.79, 78,136.83 and 25,786.47

Step by Step Solution

1. Step 1: Write the proportion equation
   52,088.79 : 78,136.83 = 25,786.47 : x
2. Step 2: Convert to fraction form
   52,088.79/78,136.83 = 25,786.47/x
3. Step 3: Cross multiply
   52,088.79x = 78,136.83 × 25,786.47
4. Step 4: Simplify right side
   52,088.79x = 2,014,873,022.69
5. Step 5: Solve for x
   x = 2,014,873,022.69/52,088.79
6. Step 6: Final answer
   x = 38,681.51