Finding the Fourth Proportional to 15,870.49, 23,807.31 and 5,877.91

Step by Step Solution

1. Step 1: Write the proportion equation
   15,870.49 : 23,807.31 = 5,877.91 : x
2. Step 2: Convert to fraction form
   15,870.49/23,807.31 = 5,877.91/x
3. Step 3: Cross multiply
   15,870.49x = 23,807.31 × 5,877.91
4. Step 4: Simplify right side
   15,870.49x = 139,937,166.00
5. Step 5: Solve for x
   x = 139,937,166.00/15,870.49
6. Step 6: Final answer
   x = 8,817.45