Finding the Fourth Proportional to 65,488.86, 98,252.46 and 21,114.72

Step by Step Solution

1. Step 1: Write the proportion equation
   65,488.86 : 98,252.46 = 21,114.72 : x
2. Step 2: Convert to fraction form
   65,488.86/98,252.46 = 21,114.72/x
3. Step 3: Cross multiply
   65,488.86x = 98,252.46 × 21,114.72
4. Step 4: Simplify right side
   65,488.86x = 2,074,573,182.21
5. Step 5: Solve for x
   x = 2,074,573,182.21/65,488.86
6. Step 6: Final answer
   x = 31,678.26