Finding the Fourth Proportional to 152,048, 209,832.72 and 84,980

Step by Step Solution

1. Step 1: Write the proportion equation
   152,048 : 209,832.72 = 84,980 : x
2. Step 2: Convert to fraction form
   152,048/209,832.72 = 84,980/x
3. Step 3: Cross multiply
   152,048x = 209,832.72 × 84,980
4. Step 4: Simplify right side
   152,048x = 17,831,584,545.60
5. Step 5: Solve for x
   x = 17,831,584,545.60/152,048
6. Step 6: Final answer
   x = 117,276.02