Finding the Fourth Proportional to 71,770.66, 99,061.10 and 55,606

Step by Step Solution

1. Step 1: Write the proportion equation
   71,770.66 : 99,061.10 = 55,606 : x
2. Step 2: Convert to fraction form
   71,770.66/99,061.10 = 55,606/x
3. Step 3: Cross multiply
   71,770.66x = 99,061.10 × 55,606
4. Step 4: Simplify right side
   71,770.66x = 5,508,391,526.60
5. Step 5: Solve for x
   x = 5,508,391,526.60/71,770.66
6. Step 6: Final answer
   x = 76,749.91