Finding the Fourth Proportional to 65,144.08, 89,886.05 and 40,931.01

Step by Step Solution

1. Step 1: Write the proportion equation
   65,144.08 : 89,886.05 = 40,931.01 : x
2. Step 2: Convert to fraction form
   65,144.08/89,886.05 = 40,931.01/x
3. Step 3: Cross multiply
   65,144.08x = 89,886.05 × 40,931.01
4. Step 4: Simplify right side
   65,144.08x = 3,679,126,606.76
5. Step 5: Solve for x
   x = 3,679,126,606.76/65,144.08
6. Step 6: Final answer
   x = 56,476.76