Finding the Fourth Proportional to 42,054.05, 63,090.12 and 12,473.93

Step by Step Solution

1. Step 1: Write the proportion equation
   42,054.05 : 63,090.12 = 12,473.93 : x
2. Step 2: Convert to fraction form
   42,054.05/63,090.12 = 12,473.93/x
3. Step 3: Cross multiply
   42,054.05x = 63,090.12 × 12,473.93
4. Step 4: Simplify right side
   42,054.05x = 786,981,740.57
5. Step 5: Solve for x
   x = 786,981,740.57/42,054.05
6. Step 6: Final answer
   x = 18,713.58