Finding the Fourth Proportional to 102,919.01, 142,030.16 and 57,601.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,919.01 : 142,030.16 = 57,601.98 : x
2. Step 2: Convert to fraction form
   102,919.01/142,030.16 = 57,601.98/x
3. Step 3: Cross multiply
   102,919.01x = 142,030.16 × 57,601.98
4. Step 4: Simplify right side
   102,919.01x = 8,181,218,147.71
5. Step 5: Solve for x
   x = 8,181,218,147.71/102,919.01
6. Step 6: Final answer
   x = 79,491.81