Finding the Fourth Proportional to 137,891.30, 206,645.59 and 62,828.00

Step by Step Solution

1. Step 1: Write the proportion equation
   137,891.30 : 206,645.59 = 62,828.00 : x
2. Step 2: Convert to fraction form
   137,891.30/206,645.59 = 62,828.00/x
3. Step 3: Cross multiply
   137,891.30x = 206,645.59 × 62,828.00
4. Step 4: Simplify right side
   137,891.30x = 12,983,127,938.22
5. Step 5: Solve for x
   x = 12,983,127,938.22/137,891.30
6. Step 6: Final answer
   x = 94,154.80