Finding the Fourth Proportional to 74,030.02, 102,141.21 and 42,187.30

Step by Step Solution

1. Step 1: Write the proportion equation
   74,030.02 : 102,141.21 = 42,187.30 : x
2. Step 2: Convert to fraction form
   74,030.02/102,141.21 = 42,187.30/x
3. Step 3: Cross multiply
   74,030.02x = 102,141.21 × 42,187.30
4. Step 4: Simplify right side
   74,030.02x = 4,309,061,868.63
5. Step 5: Solve for x
   x = 4,309,061,868.63/74,030.02
6. Step 6: Final answer
   x = 58,206.95