Finding the Fourth Proportional to 42,637.29, 63,956.04 and 13,055.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42,637.29 : 63,956.04 = 13,055.01 : x
2. Step 2: Convert to fraction form
   42,637.29/63,956.04 = 13,055.01/x
3. Step 3: Cross multiply
   42,637.29x = 63,956.04 × 13,055.01
4. Step 4: Simplify right side
   42,637.29x = 834,946,741.76
5. Step 5: Solve for x
   x = 834,946,741.76/42,637.29
6. Step 6: Final answer
   x = 19,582.55