Finding the Fourth Proportional to 60,900.12, 90,663.03 and 60,069.06

Step by Step Solution

1. Step 1: Write the proportion equation
   60,900.12 : 90,663.03 = 60,069.06 : x
2. Step 2: Convert to fraction form
   60,900.12/90,663.03 = 60,069.06/x
3. Step 3: Cross multiply
   60,900.12x = 90,663.03 × 60,069.06
4. Step 4: Simplify right side
   60,900.12x = 5,446,042,988.85
5. Step 5: Solve for x
   x = 5,446,042,988.85/60,900.12
6. Step 6: Final answer
   x = 89,425.82