Finding the Fourth Proportional to 140,495.84, 210,743.52 and 65,590.88

Step by Step Solution

1. Step 1: Write the proportion equation
   140,495.84 : 210,743.52 = 65,590.88 : x
2. Step 2: Convert to fraction form
   140,495.84/210,743.52 = 65,590.88/x
3. Step 3: Cross multiply
   140,495.84x = 210,743.52 × 65,590.88
4. Step 4: Simplify right side
   140,495.84x = 13,822,852,931.10
5. Step 5: Solve for x
   x = 13,822,852,931.10/140,495.84
6. Step 6: Final answer
   x = 98,386.21