Finding the Fourth Proportional to 102,720.72, 154,088.82 and 30,667.93

Step by Step Solution

1. Step 1: Write the proportion equation
   102,720.72 : 154,088.82 = 30,667.93 : x
2. Step 2: Convert to fraction form
   102,720.72/154,088.82 = 30,667.93/x
3. Step 3: Cross multiply
   102,720.72x = 154,088.82 × 30,667.93
4. Step 4: Simplify right side
   102,720.72x = 4,725,584,375.10
5. Step 5: Solve for x
   x = 4,725,584,375.10/102,720.72
6. Step 6: Final answer
   x = 46,004.20