Finding the Fourth Proportional to 140,063.52, 210,132.72 and 61,184.16

Step by Step Solution

1. Step 1: Write the proportion equation
   140,063.52 : 210,132.72 = 61,184.16 : x
2. Step 2: Convert to fraction form
   140,063.52/210,132.72 = 61,184.16/x
3. Step 3: Cross multiply
   140,063.52x = 210,132.72 × 61,184.16
4. Step 4: Simplify right side
   140,063.52x = 12,856,793,961.72
5. Step 5: Solve for x
   x = 12,856,793,961.72/140,063.52
6. Step 6: Final answer
   x = 91,792.59