Finding the Fourth Proportional to 42,038, 63,077 and 26,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,038 : 63,077 = 26,238.72 : x
2. Step 2: Convert to fraction form
   42,038/63,077 = 26,238.72/x
3. Step 3: Cross multiply
   42,038x = 63,077 × 26,238.72
4. Step 4: Simplify right side
   42,038x = 1,655,059,741.44
5. Step 5: Solve for x
   x = 1,655,059,741.44/42,038
6. Step 6: Final answer
   x = 39,370.56