Finding the Fourth Proportional to 64,976.02, 89,688.53 and 38,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,976.02 : 89,688.53 = 38,108.72 : x
2. Step 2: Convert to fraction form
   64,976.02/89,688.53 = 38,108.72/x
3. Step 3: Cross multiply
   64,976.02x = 89,688.53 × 38,108.72
4. Step 4: Simplify right side
   64,976.02x = 3,417,915,076.98
5. Step 5: Solve for x
   x = 3,417,915,076.98/64,976.02
6. Step 6: Final answer
   x = 52,602.72