Finding the Fourth Proportional to 64,881.90, 89,537.67 and 38,040.30

Step by Step Solution

1. Step 1: Write the proportion equation
   64,881.90 : 89,537.67 = 38,040.30 : x
2. Step 2: Convert to fraction form
   64,881.90/89,537.67 = 38,040.30/x
3. Step 3: Cross multiply
   64,881.90x = 89,537.67 × 38,040.30
4. Step 4: Simplify right side
   64,881.90x = 3,406,039,828.10
5. Step 5: Solve for x
   x = 3,406,039,828.10/64,881.90
6. Step 6: Final answer
   x = 52,495.99