Finding the Fourth Proportional to 42,006.96, 63,013.32 and 13,925.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,006.96 : 63,013.32 = 13,925.88 : x
2. Step 2: Convert to fraction form
   42,006.96/63,013.32 = 13,925.88/x
3. Step 3: Cross multiply
   42,006.96x = 63,013.32 × 13,925.88
4. Step 4: Simplify right side
   42,006.96x = 877,515,932.72
5. Step 5: Solve for x
   x = 877,515,932.72/42,006.96
6. Step 6: Final answer
   x = 20,889.77