Finding the Fourth Proportional to 139,779, 209,670.12 and 34,598.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,779 : 209,670.12 = 34,598.88 : x
2. Step 2: Convert to fraction form
   139,779/209,670.12 = 34,598.88/x
3. Step 3: Cross multiply
   139,779x = 209,670.12 × 34,598.88
4. Step 4: Simplify right side
   139,779x = 7,254,351,321.47
5. Step 5: Solve for x
   x = 7,254,351,321.47/139,779
6. Step 6: Final answer
   x = 51,898.72