Finding the Fourth Proportional to 109,920.16, 151,685.72 and 59,618.08

Step by Step Solution

1. Step 1: Write the proportion equation
   109,920.16 : 151,685.72 = 59,618.08 : x
2. Step 2: Convert to fraction form
   109,920.16/151,685.72 = 59,618.08/x
3. Step 3: Cross multiply
   109,920.16x = 151,685.72 × 59,618.08
4. Step 4: Simplify right side
   109,920.16x = 9,043,211,389.82
5. Step 5: Solve for x
   x = 9,043,211,389.82/109,920.16
6. Step 6: Final answer
   x = 82,270.73