Finding the Fourth Proportional to 89,684.04, 134,526.06 and 42,288.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,684.04 : 134,526.06 = 42,288.10 : x
2. Step 2: Convert to fraction form
   89,684.04/134,526.06 = 42,288.10/x
3. Step 3: Cross multiply
   89,684.04x = 134,526.06 × 42,288.10
4. Step 4: Simplify right side
   89,684.04x = 5,688,851,477.89
5. Step 5: Solve for x
   x = 5,688,851,477.89/89,684.04
6. Step 6: Final answer
   x = 63,432.15