Finding the Fourth Proportional to 98,969.86, 136,641.56 and 65,038.56

Step by Step Solution

1. Step 1: Write the proportion equation
   98,969.86 : 136,641.56 = 65,038.56 : x
2. Step 2: Convert to fraction form
   98,969.86/136,641.56 = 65,038.56/x
3. Step 3: Cross multiply
   98,969.86x = 136,641.56 × 65,038.56
4. Step 4: Simplify right side
   98,969.86x = 8,886,970,298.55
5. Step 5: Solve for x
   x = 8,886,970,298.55/98,969.86
6. Step 6: Final answer
   x = 89,794.71