Finding the Fourth Proportional to 74,608.32, 102,961.17 and 42,345.09

Step by Step Solution

1. Step 1: Write the proportion equation
   74,608.32 : 102,961.17 = 42,345.09 : x
2. Step 2: Convert to fraction form
   74,608.32/102,961.17 = 42,345.09/x
3. Step 3: Cross multiply
   74,608.32x = 102,961.17 × 42,345.09
4. Step 4: Simplify right side
   74,608.32x = 4,359,900,010.16
5. Step 5: Solve for x
   x = 4,359,900,010.16/74,608.32
6. Step 6: Final answer
   x = 58,437.18