Finding the Fourth Proportional to 93,323.88, 128,763.86 and 57,015.98

Step by Step Solution

1. Step 1: Write the proportion equation
   93,323.88 : 128,763.86 = 57,015.98 : x
2. Step 2: Convert to fraction form
   93,323.88/128,763.86 = 57,015.98/x
3. Step 3: Cross multiply
   93,323.88x = 128,763.86 × 57,015.98
4. Step 4: Simplify right side
   93,323.88x = 7,341,597,666.48
5. Step 5: Solve for x
   x = 7,341,597,666.48/93,323.88
6. Step 6: Final answer
   x = 78,667.94