Finding the Fourth Proportional to 74,345.50, 102,595.57 and 42,513.31

Step by Step Solution

1. Step 1: Write the proportion equation
   74,345.50 : 102,595.57 = 42,513.31 : x
2. Step 2: Convert to fraction form
   74,345.50/102,595.57 = 42,513.31/x
3. Step 3: Cross multiply
   74,345.50x = 102,595.57 × 42,513.31
4. Step 4: Simplify right side
   74,345.50x = 4,361,677,272.04
5. Step 5: Solve for x
   x = 4,361,677,272.04/74,345.50
6. Step 6: Final answer
   x = 58,667.67