Finding the Fourth Proportional to 78,915.42, 118,383.85 and 25,590.01

Step by Step Solution

1. Step 1: Write the proportion equation
   78,915.42 : 118,383.85 = 25,590.01 : x
2. Step 2: Convert to fraction form
   78,915.42/118,383.85 = 25,590.01/x
3. Step 3: Cross multiply
   78,915.42x = 118,383.85 × 25,590.01
4. Step 4: Simplify right side
   78,915.42x = 3,029,443,905.34
5. Step 5: Solve for x
   x = 3,029,443,905.34/78,915.42
6. Step 6: Final answer
   x = 38,388.49