Finding the Fourth Proportional to 69,811.47, 96,339.39 and 37,980.51

Step by Step Solution

1. Step 1: Write the proportion equation
   69,811.47 : 96,339.39 = 37,980.51 : x
2. Step 2: Convert to fraction form
   69,811.47/96,339.39 = 37,980.51/x
3. Step 3: Cross multiply
   69,811.47x = 96,339.39 × 37,980.51
4. Step 4: Simplify right side
   69,811.47x = 3,659,019,165.29
5. Step 5: Solve for x
   x = 3,659,019,165.29/69,811.47
6. Step 6: Final answer
   x = 52,412.87