Finding the Fourth Proportional to 102,046.72, 153,070.32 and 31,926.16

Step by Step Solution

1. Step 1: Write the proportion equation
   102,046.72 : 153,070.32 = 31,926.16 : x
2. Step 2: Convert to fraction form
   102,046.72/153,070.32 = 31,926.16/x
3. Step 3: Cross multiply
   102,046.72x = 153,070.32 × 31,926.16
4. Step 4: Simplify right side
   102,046.72x = 4,886,947,527.57
5. Step 5: Solve for x
   x = 4,886,947,527.57/102,046.72
6. Step 6: Final answer
   x = 47,889.32