Finding the Fourth Proportional to 37,870.42, 52,261.32 and 21,103.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,870.42 : 52,261.32 = 21,103.42 : x
2. Step 2: Convert to fraction form
   37,870.42/52,261.32 = 21,103.42/x
3. Step 3: Cross multiply
   37,870.42x = 52,261.32 × 21,103.42
4. Step 4: Simplify right side
   37,870.42x = 1,102,892,585.71
5. Step 5: Solve for x
   x = 1,102,892,585.71/37,870.42
6. Step 6: Final answer
   x = 29,122.80