Finding the Fourth Proportional to 47,288.88, 70,724.18 and 42,060.57

Step by Step Solution

1. Step 1: Write the proportion equation
   47,288.88 : 70,724.18 = 42,060.57 : x
2. Step 2: Convert to fraction form
   47,288.88/70,724.18 = 42,060.57/x
3. Step 3: Cross multiply
   47,288.88x = 70,724.18 × 42,060.57
4. Step 4: Simplify right side
   47,288.88x = 2,974,699,113.28
5. Step 5: Solve for x
   x = 2,974,699,113.28/47,288.88
6. Step 6: Final answer
   x = 62,904.83