Finding the Fourth Proportional to 137,345.53, 206,050.25 and 42,570.69

Step by Step Solution

1. Step 1: Write the proportion equation
   137,345.53 : 206,050.25 = 42,570.69 : x
2. Step 2: Convert to fraction form
   137,345.53/206,050.25 = 42,570.69/x
3. Step 3: Cross multiply
   137,345.53x = 206,050.25 × 42,570.69
4. Step 4: Simplify right side
   137,345.53x = 8,771,700,411.45
5. Step 5: Solve for x
   x = 8,771,700,411.45/137,345.53
6. Step 6: Final answer
   x = 63,865.93