Finding the Fourth Proportional to 71,890.61, 107,762.48 and 25,105.01

Step by Step Solution

1. Step 1: Write the proportion equation
   71,890.61 : 107,762.48 = 25,105.01 : x
2. Step 2: Convert to fraction form
   71,890.61/107,762.48 = 25,105.01/x
3. Step 3: Cross multiply
   71,890.61x = 107,762.48 × 25,105.01
4. Step 4: Simplify right side
   71,890.61x = 2,705,378,012.50
5. Step 5: Solve for x
   x = 2,705,378,012.50/71,890.61
6. Step 6: Final answer
   x = 37,631.87