Finding the Fourth Proportional to 45,878, 68,828.56 and 13,046

Step by Step Solution

1. Step 1: Write the proportion equation
   45,878 : 68,828.56 = 13,046 : x
2. Step 2: Convert to fraction form
   45,878/68,828.56 = 13,046/x
3. Step 3: Cross multiply
   45,878x = 68,828.56 × 13,046
4. Step 4: Simplify right side
   45,878x = 897,937,393.76
5. Step 5: Solve for x
   x = 897,937,393.76/45,878
6. Step 6: Final answer
   x = 19,572.29