Finding the Fourth Proportional to 102,319.46, 141,200.46 and 56,997.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,319.46 : 141,200.46 = 56,997.98 : x
2. Step 2: Convert to fraction form
   102,319.46/141,200.46 = 56,997.98/x
3. Step 3: Cross multiply
   102,319.46x = 141,200.46 × 56,997.98
4. Step 4: Simplify right side
   102,319.46x = 8,048,140,995.07
5. Step 5: Solve for x
   x = 8,048,140,995.07/102,319.46
6. Step 6: Final answer
   x = 78,656.99