Finding the Fourth Proportional to 28,499.93, 42,726.86 and 11,872.46

Step by Step Solution

1. Step 1: Write the proportion equation
   28,499.93 : 42,726.86 = 11,872.46 : x
2. Step 2: Convert to fraction form
   28,499.93/42,726.86 = 11,872.46/x
3. Step 3: Cross multiply
   28,499.93x = 42,726.86 × 11,872.46
4. Step 4: Simplify right side
   28,499.93x = 507,272,752.32
5. Step 5: Solve for x
   x = 507,272,752.32/28,499.93
6. Step 6: Final answer
   x = 17,799.09