Finding the Fourth Proportional to 71,032.40, 98,061.57 and 51,890.69

Step by Step Solution

1. Step 1: Write the proportion equation
   71,032.40 : 98,061.57 = 51,890.69 : x
2. Step 2: Convert to fraction form
   71,032.40/98,061.57 = 51,890.69/x
3. Step 3: Cross multiply
   71,032.40x = 98,061.57 × 51,890.69
4. Step 4: Simplify right side
   71,032.40x = 5,088,482,529.78
5. Step 5: Solve for x
   x = 5,088,482,529.78/71,032.40
6. Step 6: Final answer
   x = 71,636.08