Finding the Fourth Proportional to 137,870.08, 206,514.50 and 63,053.21

Step by Step Solution

1. Step 1: Write the proportion equation
   137,870.08 : 206,514.50 = 63,053.21 : x
2. Step 2: Convert to fraction form
   137,870.08/206,514.50 = 63,053.21/x
3. Step 3: Cross multiply
   137,870.08x = 206,514.50 × 63,053.21
4. Step 4: Simplify right side
   137,870.08x = 13,021,402,337.57
5. Step 5: Solve for x
   x = 13,021,402,337.57/137,870.08
6. Step 6: Final answer
   x = 94,446.91