Finding the Fourth Proportional to 74,191.35, 102,419.52 and 42,354.09

Step by Step Solution

1. Step 1: Write the proportion equation
   74,191.35 : 102,419.52 = 42,354.09 : x
2. Step 2: Convert to fraction form
   74,191.35/102,419.52 = 42,354.09/x
3. Step 3: Cross multiply
   74,191.35x = 102,419.52 × 42,354.09
4. Step 4: Simplify right side
   74,191.35x = 4,337,885,567.84
5. Step 5: Solve for x
   x = 4,337,885,567.84/74,191.35
6. Step 6: Final answer
   x = 58,468.89