Finding the Fourth Proportional to 76,472.52, 105,570.45 and 47,808.11

Step by Step Solution

1. Step 1: Write the proportion equation
   76,472.52 : 105,570.45 = 47,808.11 : x
2. Step 2: Convert to fraction form
   76,472.52/105,570.45 = 47,808.11/x
3. Step 3: Cross multiply
   76,472.52x = 105,570.45 × 47,808.11
4. Step 4: Simplify right side
   76,472.52x = 5,047,123,158.50
5. Step 5: Solve for x
   x = 5,047,123,158.50/76,472.52
6. Step 6: Final answer
   x = 65,999.17