Finding the Fourth Proportional to 25,345.01, 34,962.89 and 15,783.36

Step by Step Solution

1. Step 1: Write the proportion equation
   25,345.01 : 34,962.89 = 15,783.36 : x
2. Step 2: Convert to fraction form
   25,345.01/34,962.89 = 15,783.36/x
3. Step 3: Cross multiply
   25,345.01x = 34,962.89 × 15,783.36
4. Step 4: Simplify right side
   25,345.01x = 551,831,800.59
5. Step 5: Solve for x
   x = 551,831,800.59/25,345.01
6. Step 6: Final answer
   x = 21,772.80