Finding the Fourth Proportional to 102,956.33, 142,071.91 and 57,623.94

Step by Step Solution

1. Step 1: Write the proportion equation
   102,956.33 : 142,071.91 = 57,623.94 : x
2. Step 2: Convert to fraction form
   102,956.33/142,071.91 = 57,623.94/x
3. Step 3: Cross multiply
   102,956.33x = 142,071.91 × 57,623.94
4. Step 4: Simplify right side
   102,956.33x = 8,186,743,073.47
5. Step 5: Solve for x
   x = 8,186,743,073.47/102,956.33
6. Step 6: Final answer
   x = 79,516.65