Finding the Fourth Proportional to 74,352.72, 102,606.72 and 42,521.28

Step by Step Solution

1. Step 1: Write the proportion equation
   74,352.72 : 102,606.72 = 42,521.28 : x
2. Step 2: Convert to fraction form
   74,352.72/102,606.72 = 42,521.28/x
3. Step 3: Cross multiply
   74,352.72x = 102,606.72 × 42,521.28
4. Step 4: Simplify right side
   74,352.72x = 4,362,969,071.00
5. Step 5: Solve for x
   x = 4,362,969,071.00/74,352.72
6. Step 6: Final answer
   x = 58,679.35