Finding the Fourth Proportional to 64,974.02, 89,685.77 and 38,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,974.02 : 89,685.77 = 38,106.72 : x
2. Step 2: Convert to fraction form
   64,974.02/89,685.77 = 38,106.72/x
3. Step 3: Cross multiply
   64,974.02x = 89,685.77 × 38,106.72
4. Step 4: Simplify right side
   64,974.02x = 3,417,630,334.84
5. Step 5: Solve for x
   x = 3,417,630,334.84/64,974.02
6. Step 6: Final answer
   x = 52,599.96