Finding the Fourth Proportional to 102,436.86, 153,677.86 and 31,360.04

Step by Step Solution

1. Step 1: Write the proportion equation
   102,436.86 : 153,677.86 = 31,360.04 : x
2. Step 2: Convert to fraction form
   102,436.86/153,677.86 = 31,360.04/x
3. Step 3: Cross multiply
   102,436.86x = 153,677.86 × 31,360.04
4. Step 4: Simplify right side
   102,436.86x = 4,819,342,911.52
5. Step 5: Solve for x
   x = 4,819,342,911.52/102,436.86
6. Step 6: Final answer
   x = 47,046.96