Finding the Fourth Proportional to 425,085.90, 586,636.59 and 243,848.94

Step by Step Solution

1. Step 1: Write the proportion equation
   425,085.90 : 586,636.59 = 243,848.94 : x
2. Step 2: Convert to fraction form
   425,085.90/586,636.59 = 243,848.94/x
3. Step 3: Cross multiply
   425,085.90x = 586,636.59 × 243,848.94
4. Step 4: Simplify right side
   425,085.90x = 143,050,710,636.72
5. Step 5: Solve for x
   x = 143,050,710,636.72/425,085.90
6. Step 6: Final answer
   x = 336,521.89