Finding the Fourth Proportional to 93,300.18, 128,675.01 and 78,835.23

Step by Step Solution

1. Step 1: Write the proportion equation
   93,300.18 : 128,675.01 = 78,835.23 : x
2. Step 2: Convert to fraction form
   93,300.18/128,675.01 = 78,835.23/x
3. Step 3: Cross multiply
   93,300.18x = 128,675.01 × 78,835.23
4. Step 4: Simplify right side
   93,300.18x = 10,144,124,304.23
5. Step 5: Solve for x
   x = 10,144,124,304.23/93,300.18
6. Step 6: Final answer
   x = 108,725.67