Finding the Fourth Proportional to 155,878.08, 215,061 and 95,385.60

Step by Step Solution

1. Step 1: Write the proportion equation
   155,878.08 : 215,061 = 95,385.60 : x
2. Step 2: Convert to fraction form
   155,878.08/215,061 = 95,385.60/x
3. Step 3: Cross multiply
   155,878.08x = 215,061 × 95,385.60
4. Step 4: Simplify right side
   155,878.08x = 20,513,722,521.60
5. Step 5: Solve for x
   x = 20,513,722,521.60/155,878.08
6. Step 6: Final answer
   x = 131,601.07