Finding the Fourth Proportional to 97,128.50, 145,718.66 and 34,805.30

Step by Step Solution

1. Step 1: Write the proportion equation
   97,128.50 : 145,718.66 = 34,805.30 : x
2. Step 2: Convert to fraction form
   97,128.50/145,718.66 = 34,805.30/x
3. Step 3: Cross multiply
   97,128.50x = 145,718.66 × 34,805.30
4. Step 4: Simplify right side
   97,128.50x = 5,071,781,035.32
5. Step 5: Solve for x
   x = 5,071,781,035.32/97,128.50
6. Step 6: Final answer
   x = 52,217.23