Finding the Fourth Proportional to 74,513, 102,828.42 and 40,521.86

Step by Step Solution

1. Step 1: Write the proportion equation
   74,513 : 102,828.42 = 40,521.86 : x
2. Step 2: Convert to fraction form
   74,513/102,828.42 = 40,521.86/x
3. Step 3: Cross multiply
   74,513x = 102,828.42 × 40,521.86
4. Step 4: Simplify right side
   74,513x = 4,166,798,839.26
5. Step 5: Solve for x
   x = 4,166,798,839.26/74,513
6. Step 6: Final answer
   x = 55,920.43