Finding the Fourth Proportional to 64,641.12, 89,196.72 and 37,421.84

Step by Step Solution

1. Step 1: Write the proportion equation
   64,641.12 : 89,196.72 = 37,421.84 : x
2. Step 2: Convert to fraction form
   64,641.12/89,196.72 = 37,421.84/x
3. Step 3: Cross multiply
   64,641.12x = 89,196.72 × 37,421.84
4. Step 4: Simplify right side
   64,641.12x = 3,337,905,384.36
5. Step 5: Solve for x
   x = 3,337,905,384.36/64,641.12
6. Step 6: Final answer
   x = 51,637.49