Finding the Fourth Proportional to 69,809.42, 96,338.15 and 37,978.34

Step by Step Solution

1. Step 1: Write the proportion equation
   69,809.42 : 96,338.15 = 37,978.34 : x
2. Step 2: Convert to fraction form
   69,809.42/96,338.15 = 37,978.34/x
3. Step 3: Cross multiply
   69,809.42x = 96,338.15 × 37,978.34
4. Step 4: Simplify right side
   69,809.42x = 3,658,763,015.67
5. Step 5: Solve for x
   x = 3,658,763,015.67/69,809.42
6. Step 6: Final answer
   x = 52,410.74