Finding the Fourth Proportional to 64,973.73, 89,664.50 and 38,116.70

Step by Step Solution

1. Step 1: Write the proportion equation
   64,973.73 : 89,664.50 = 38,116.70 : x
2. Step 2: Convert to fraction form
   64,973.73/89,664.50 = 38,116.70/x
3. Step 3: Cross multiply
   64,973.73x = 89,664.50 × 38,116.70
4. Step 4: Simplify right side
   64,973.73x = 3,417,714,847.15
5. Step 5: Solve for x
   x = 3,417,714,847.15/64,973.73
6. Step 6: Final answer
   x = 52,601.49