Finding the Fourth Proportional to 98,646.42, 147,925.89 and 69,078.18

Step by Step Solution

1. Step 1: Write the proportion equation
   98,646.42 : 147,925.89 = 69,078.18 : x
2. Step 2: Convert to fraction form
   98,646.42/147,925.89 = 69,078.18/x
3. Step 3: Cross multiply
   98,646.42x = 147,925.89 × 69,078.18
4. Step 4: Simplify right side
   98,646.42x = 10,218,451,256.08
5. Step 5: Solve for x
   x = 10,218,451,256.08/98,646.42
6. Step 6: Final answer
   x = 103,586.64