Finding the Fourth Proportional to 74,328.06, 102,569.43 and 42,499.05

Step by Step Solution

1. Step 1: Write the proportion equation
   74,328.06 : 102,569.43 = 42,499.05 : x
2. Step 2: Convert to fraction form
   74,328.06/102,569.43 = 42,499.05/x
3. Step 3: Cross multiply
   74,328.06x = 102,569.43 × 42,499.05
4. Step 4: Simplify right side
   74,328.06x = 4,359,103,334.04
5. Step 5: Solve for x
   x = 4,359,103,334.04/74,328.06
6. Step 6: Final answer
   x = 58,646.81