Finding the Fourth Proportional to 122,386.56, 183,538.25 and 42,405.86

Step by Step Solution

1. Step 1: Write the proportion equation
   122,386.56 : 183,538.25 = 42,405.86 : x
2. Step 2: Convert to fraction form
   122,386.56/183,538.25 = 42,405.86/x
3. Step 3: Cross multiply
   122,386.56x = 183,538.25 × 42,405.86
4. Step 4: Simplify right side
   122,386.56x = 7,783,097,899.01
5. Step 5: Solve for x
   x = 7,783,097,899.01/122,386.56
6. Step 6: Final answer
   x = 63,594.38