Finding the Fourth Proportional to 103,007.86, 154,535.90 and 31,926.78

Step by Step Solution

1. Step 1: Write the proportion equation
   103,007.86 : 154,535.90 = 31,926.78 : x
2. Step 2: Convert to fraction form
   103,007.86/154,535.90 = 31,926.78/x
3. Step 3: Cross multiply
   103,007.86x = 154,535.90 × 31,926.78
4. Step 4: Simplify right side
   103,007.86x = 4,933,833,521.77
5. Step 5: Solve for x
   x = 4,933,833,521.77/103,007.86
6. Step 6: Final answer
   x = 47,897.64