Finding the Fourth Proportional to 102,779.98, 141,837.42 and 57,460.48

Step by Step Solution

1. Step 1: Write the proportion equation
   102,779.98 : 141,837.42 = 57,460.48 : x
2. Step 2: Convert to fraction form
   102,779.98/141,837.42 = 57,460.48/x
3. Step 3: Cross multiply
   102,779.98x = 141,837.42 × 57,460.48
4. Step 4: Simplify right side
   102,779.98x = 8,150,046,096.04
5. Step 5: Solve for x
   x = 8,150,046,096.04/102,779.98
6. Step 6: Final answer
   x = 79,296.05