Finding the Fourth Proportional to 42,920.96, 59,100.64 and 38,071.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,920.96 : 59,100.64 = 38,071.20 : x
2. Step 2: Convert to fraction form
   42,920.96/59,100.64 = 38,071.20/x
3. Step 3: Cross multiply
   42,920.96x = 59,100.64 × 38,071.20
4. Step 4: Simplify right side
   42,920.96x = 2,250,032,285.57
5. Step 5: Solve for x
   x = 2,250,032,285.57/42,920.96
6. Step 6: Final answer
   x = 52,422.69