Finding the Fourth Proportional to 64,658.62, 89,211.45 and 37,807.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,658.62 : 89,211.45 = 37,807.72 : x
2. Step 2: Convert to fraction form
   64,658.62/89,211.45 = 37,807.72/x
3. Step 3: Cross multiply
   64,658.62x = 89,211.45 × 37,807.72
4. Step 4: Simplify right side
   64,658.62x = 3,372,881,522.39
5. Step 5: Solve for x
   x = 3,372,881,522.39/64,658.62
6. Step 6: Final answer
   x = 52,164.45