Finding the Fourth Proportional to 76,830.34, 105,955.41 and 52,666.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,830.34 : 105,955.41 = 52,666.42 : x
2. Step 2: Convert to fraction form
   76,830.34/105,955.41 = 52,666.42/x
3. Step 3: Cross multiply
   76,830.34x = 105,955.41 × 52,666.42
4. Step 4: Simplify right side
   76,830.34x = 5,580,292,124.33
5. Step 5: Solve for x
   x = 5,580,292,124.33/76,830.34
6. Step 6: Final answer
   x = 72,631.36